* Add batched drawing API
Internally Clyde batches drawing, however when drawing hundreds / thousands of the same quad the batch checks add up. This just omits those checks and directly draws instead. Same with skipping color modulation.
Long-term could probably figure out a way to SIMD the transforms better.
* RN
* Added documentation to Clyde on the sprite rendering calls.
* Added a rotation debug entity.
* Non-directional RSIs and raw textures are now rotated properly.
* Directional RSIs and Sprite Smoothing work.
* Remove the Directional flag usages.
* Supports layers with different numbers of directions.
* Fixes window rendering.
* Removed the Interfaces folder.
* All objects inside the GameObjects subfolders are now in the GameObjects namespace.
* Added a Resharper DotSettings file to mark the GameObjects subfolders as not providing namespaces.
* Simplified Robust.client.Graphics namespace.
* Automated remove redundant using statements.
* Adds a derived class from Nunit's Is test constraint class.
The game camera can now be rotated.
* Added the new `bind` command to the console, used to bind a key to a keybind.
Added two new keybinds for rotating the View camera left and right.
Added more info to the ""Component does not exist for state" exception.
Added Reduced() and FlipPositive() public functions to Angle.
* Fix a copy/paste bug.
* Adds missing code to bind/unbind CameraRotateLeft.
Camera snapping now actually uses the CameraSnapTolerance constant.
* Attempted Clyde cleanup, didn't get far.
* Add negation operator to Vector2i.
* Add RenderOrder to ISpriteComponent.
* Post process shaders.
Adds "post process" shaders to sprite component.
These are executed on the WHOLE sprite component (every layer)
in one draw.
This is necessary to implement functional outlines.
