Add logging markers

[ScribbleTAS]

Add a custom log4jconfig to the mod which allows markers, ansi-coloring and debug log level

Markers

Markers allow you to filter log messages later
To add a marker to log messages use:

TASmod.logger.info(LoggerMarkers.Event, "Message");

This message can then later be disabled with

-Dtasmod.marker.event=DENY

A new marker has to be added in the log4j.xml like this under <Filters>:

    <MarkerFilter marker="Event" onMatch="${sys:tasmod.marker.event:-ACCEPT}" onMismatch="NEUTRAL" />

TASmod log level

The TASmod logger now has a seperate log level from the regular fabric one.
It can be accessed with

-Dtasmod.log.level=INFO

Misc

• Added more debug log messages and trace log messages
• Minor improvements to SavestateHandler
• Removed printing a stacktrace when no config file was found

Todo

Markers to be added:

• [x] Events
• [x] Savestates
• [x] Networking //Add during packet rework!
• [x] Playback
• [x] Tickratechanger

Closes #154