Resolve "Certain events need special emphasis in the visualization"

Closes #59

See merge request !66

It is now possible to specify certain event types to emphasize
in the settings.

Points of such an event type will then be displayed with an increased
radius as well as a wider stroke.

Additionally, the settings interface has been changed to use
primefaces instead of bootsfaces (out of necessity).

Resolve "Canvas changes color each time a setting is saved"

Closes #98

See merge request !64

Resolve "Visualization "Profiles""

Closes #97

See merge request !63

The ability to import profiles has been implemented.

This is either possible by dragging profiles onto the graph,
or by selecting "Select profiles..."->"Upload new profile" in
the right-click menu. This will *not* apply the profile yet!
Afterwards, profiles will be persisted in the session and can
be applied at any time by choosing the profile in the right-click
menu's "Select profiles..." submenu. Note that some settings will
only be applied upon re-uploading the recording file.
Profiles can also be applied successively, with only those changes
per profile applied which have actually been saved in the
respective profile.

A "Default" profile has also been added, which will reset
all values saved in a profile (i.e. all legend options as well as
settings) to their original value.

Additionally, profiles can now be given a name to be identifiable
in the menu.

(DebugEvents have only been recorded twice, so they shouldn't be considered because the probabilities for that event type are very likely to not be significant.)

The configuration file now has two more configuration options in the "hysteresis" section called "phaseSwitchTrigger" and "phaseSwitchRelease".

The filter only enters a given phase if the (relative) probability for this phase exceeds the value of phaseSwitchTrigger.
After a given phase is entered, it can only be changed if the probability of the current phase has gone below the value of phaseSwitchRelease
and hasn't gone above the value of phaseSwitchTrigger after going below phaseSwitchRelease.

The default values for phaseSwitchTrigger and phaseSwitchRelease are 0.4 and 0.3, respectively.

Rewrote filters so that the number of phases, phase names and various other parameters used by the filters can be configured using the configuration file.

TODO: Verify documentation and write additional documentation for each filter class in the project wiki.

The ability to export profiles has been implemented.

When right-clicking and selecting "Export -> Profile", the user
is presented a dialog in which they can choose what to export.
After confirming, the result will be saved and downloaded as a
JSON file.

Note that the functionality for importing profiles has yet to be added,
only some demo UI options have been added.

Modified filters and UI so that filter parameters/probabilities can be exported to/imported from JSON files instead of being hardcoded.

Resolve "Idle Time Detection / Action Chain Reduction"

Closes #29

See merge request !62

- Reloading the page no longer causes incorrect chain reductions
- Event list entries of idle times vanish alongside their visualization entries

Idle time (defined as an amount of time in which no events happen) is now being
detected and displayed in the visualization as a grey box overlay.

The detected idle time is also displayed in the event list as a special entry.
The display of such idle times in the visualization can be disabled with a
special button at the top, and the minimum idle time can be set in the
settings.

TODO: Bug with CodeChainReductions

Specifically, the ScrollEvent and TextSelectionEvent have received
reduction implementations.

The only thing left before this branch can be merged is
idle time detection and its setting.

The number of reductions is now displayed as a badge next to
each event list entry with a non-zero number of reductions.

Note that e.g. a '2' means that 2 events have been reduced into a single
one.

TODO: Zoom and Pan no longer work for the X-Axis.

An editor text cursor event is reduced in a similar fashion to the Elevator Algorithm,
while for a SaveEvent the reduction is done by simply choosing the last SaveEvent.

For more details, see the wiki page:
https://gitlab.informatik.uni-bremen.de/dfgpc/mimesis/-/wikis/events/Chain-Reductions

TODOs before this branch can be merged:
- Idle time detection (w/ additional setting)
- TextSelectionEvent & ScrollEvent reduction
- Reductions should be displayed in visualization's event list

The basic structure for event chain reductions has been implemented, as well
as functioning reductions for chained CodeChangeEvents.

For this, a visitor has been implemented which is fed a stream of events.
Every new event which is passed in is then chained with the previous event
if certain conditions apply.
For details, see: https://gitlab.informatik.uni-bremen.de/dfgpc/mimesis/-/wikis/events/Chain-Reductions

A setting has also been added allowing the user to choose whether or not
to apply reductions.

Additional Changes:
- When uploading a file, the file browser will now only display xml files.
- Better formatting of special characters in the event list's attributes.
- Lombok's @Getter and @Setter have been used to replace certain classes methods.

Resolve "Show Recording Meta-Information (Screen Size, Time of Recording)"

Closes #66

See merge request !61

This meta information consists of display information
and the start time of the recording.

For more information about what and where this information
is displayed, see:
https://gitlab.informatik.uni-bremen.de/dfgpc/mimesis/-/wikis/events/Display-Information-Guide

Resolve "Implementation of first filters for development phase detection"

Closes #96

See merge request !60

Added a setting to change the used filter, made some more optimizations in the DecayPhaseShareBasedFilter.

Visualisation can now show the most probable phase according to a given filter as colored ranges inside the graph.

ThreePhaseFiltering class abstracted for use with different filter methods.