New features

Added a bundled SecondCity/Crimson Grid profile.
Map previews now show the transform of atoms and overlays. Sprites turn and scale about their center, and an overlay uses its parent's transform unless it sets RESET_TRANSFORM.
Added matrix support to the bake runtime: matrix(), Translate, Scale, Turn, turn() on a matrix, *, and ~.
The tgstation profile now runs the overlay light component to draw lights, and it initializes grass and ash turfs.
The goonstation profile now shows cable, cable spawner, and disposal pipe connections.
Map edits are faster on large maps. The editor now updates only the changed part of the sprite buffer.
Codebase loads use less memory on large maps.

Fixes

Fixed x = locate(/type) in container, which did not search the container.
Fixed initial() for type and parent_type.
Fixed icons in list variables, which the editor did not load.
Fixed appearance variables that a runtime initializer sets, for example icon_state = pick("a", "b"). The bake now exports them.
Fixed new map views that did not dock in the center after an earlier session saved a different layout.