Rotate (#322)

* Basic rotate & flip

* Flipping resize when orientation changes

* Hack around critters issue.

* Removing generator. Huge perf boost.

* Stable positioning

* Creating input processors

* Allowing rotation to be changed

* Reverting old change

* Adding tooltips

* No more flip

* Removing need for wrapper element boxing

* Adding comment

* Addressing nits

* Bleh

src/codecs/input-processors.ts

@@ -0,0 +1,9 @@
+import { defaultOptions as rotateDefaultOptions } from './rotate/processor-meta';
+
+export interface InputProcessorState {
+  rotate: import('./rotate/processor-meta').RotateOptions;
+}
+
+export const defaultInputProcessorState: InputProcessorState = {
+  rotate: rotateDefaultOptions,
+};