Changes

Added config entry in advancedSettings to disable initial login prompt

Added setters for Position and Size variables to GuiElement interface and implemented them

Added SpectatingMethod attribute to SpectatorData object, and more variables for the SHOULDER_CAM SpectatingMethod

Created proper GuiEditKeyframe window for Spectator Keyframes, with possibility to toggle the Spectating Method and set its values

Spectator Keyframe segments using Shoulder Camera are rendered in a different color on the timeline

Fixed GuiNumberInput#getIntValue() returning 0 if floating point number is entered

Changed Pitch/Yaw Offset Input fields in GuiEditKeyframe to only accept Integer values

The ReplayProcess now respects the basic settings of SpectatingMethod.SHOULDER_CAM, Smoothness and interpolation between two SHOULDER_CAM Keyframes is yet to be implemented

Better error output when GuiReplayViewer can't load .mcpr file to see which file can't be read

Disallow leaving spectating while in Camera Path

Change AdvancedPosition constructor to accept doubles for pitch and yaw, as the internal objects are doubles as well

Removed the "Prepare Replay" setting (+1 squashed commit)
Squashed commits:
[74a16a9] Created EntityPositionTracker, which parses the whole Replay when initially loading it and remembers every Entity's Position at any timestamp.
The EntityPositionTracker can be disabled using a Replay Setting.

Rebalance the maximum and default SpectatorDataThirdPersonInfo#shoulderCamSmoothness values (+1 squashed commit)
Squashed commits:
[d1374a7] Information about the shoulder camera's position are now stored in a separate, interpolateable Object instead of directly in the SpectatorData Object

Created AdvancedPositionKeyframeList, whose interpolation methods properly handle Spectator Keyframes using the SpectatorDataInterpolation

Change ReplayHandler and KeyframesModifyEvent to use AdvancedPositionKeyframeList instead of KeyframeList<AdvancedPosition>

The EntityPositionTracker now returns copies of its values to prevent them from being changed

The newInstance Method of SpectatorData now returns an AdvancedPosition object to prevent IllegalStateExceptions from occurring when using the toString() method on the SpectatorData object without an entityID

Finished the AdvancedPositionKeyframeList and SpectatorDataInterpolation

The PathPreviewRenderer now uses the ReplayHandler's AdvancedPositionKeyframeList's interpolation methods instead of manually handling spectator keyframes

Use the AdvancedPositionKeyframeList's interpolation instead of manually calculating the camera Path in the ReplayProcess

Remove own interpolators in VideoRenderer and use the KeyframeList's interpolators instead, thus supporting the new Spectator Keyframes

SpectatorDataInterpolation code cleanup (+1 squashed commit)
Squashed commits:
[6aa2eef] To ensure a continuous camera path, the SpectatorDataInterpolation now directly influences the AdvancedPositionKeyframeList's interpolation's Position Keyframes