* compiler: Support the majority of the remaining VU VF instructions
- VWAIT
- VMADD variants
- VMSUB variants
- VSQRT
- VDIV
- outer product (VOPMULA + VOPMSUB)
* compiler: Fix some bugs / optimize some instructions
* tests/compiler: Add test coverage for new instructions
* docs: Add documentation for new inline assembly functions
* lint: Formatting / fix failing test
* Remove my comment about ftf/fsf encoding, it's been fixed
* address review feedback
* correct VSQRTPS implementation
