This version contains all the converged list of intrinsics that will be
presented as the RISC-V vector C intrinsics v1.0. The purpose for this version
is to serve as a point of reference for the LLVM 17 release, while the document
itself still need some more polishing.

New changes in v0.12:

- Add reinterpret cast between vector boolean and vector integer m1 value
- Let fixed-point intrinsics model control the rounding mode
- Add variants of the floating-point intrinsics to control the rounding mode
- Prune legacy intrinsics from the document
- Add missing _mu variants for some overloaded intrinsics
- Add api-testing and overloaded-api-testing with policy
- Remove vread_csr and vwrite_csr

Please checkout the pull request landed for more detail:
 #221, #222, #226, #227, #233, #235, #249