Motion Capture

[1.4-alpha-8 -> 1.4-alpha-9]
-Added API.
-Added "time" playback modifier group and moved "startDelay" into it as "wait_on_start" (thanks to damiendier for suggesion).
-Added "time/start_delay" playback modifier (different from previous "startDelay" modifier).
-Added "time/wait_on_end" playback modifier.
-Added "time/wait_for_parent_end" playback modifier (true by default).
-Added "time/loop" playback modifier (thanks to vini14zin for suggestion).
-Improved tracking of dimension changes (thanks to damiendier for reporting).
-Added setting "on_change_dimension" which determines what will happen when recorded player changes dimension (end_recording by default).
-Added setting "assign_dimension" to assign dimension to a recording (true by default).
-Added setting "dimension_source" to specify dimension in which dimension playback will start (assigned_or_current by default).
-Added setting "quick_discard" to enable or disable quick discard by executing "stop" two times (true by default).
-Added setting "required_extensions" to change how lack of recording extensions is handled.
-Added setting "nbt_recording_mode" to specify how NBT data of non-player entities should be recorded.
-Added setting "max_float_pos_value" to specify distance from recording start at which recording should switch to double precision floating point numbers.
-Added command to refresh suggestions for files - "/mocap misc refresh_suggestions".
-Added suggestions for skins from files.
-Added suggestions for entity filters.
-Added pattern matching with "*" for "scenes add_to" playable argument.
-Command "/mocap playback start" can now accept entity selectors to more than one player.
-Playback IDs are now unique throughout server run.
-Number of operations in recording information now counts tick operations.
-Improved saving of automatically stopped recordings - when quick discard is enabled, stop command now needs to be used two times in order to prevent accidental discards.
-Improved "playback list" command output.
-Fixed closing chest not being recorded.
-Fixed 1.21+ special effect particles not being visible.
-Fixed saddles not working on newer Minecraft versions.
-Fixed baby entities being recorded as adults.
-Fixed damage going through shields.
-Fixed damage spam issue on Fabric.
-Fixed "/mocap misc clear_cache" removing suggestions for currently recorded recordings, started before its execution.
-Fixed death in playback crashing game on version for 1.21.4.