Vestral

Results 3 issues of Vestral

- Fix CBC mode decryption for aliased input/output - Also fix SHA3-224 as per #14

Tested on x86 (without TSX) and linux arm (qemu). Had to compile discord-rpc from source since precompiled libs don't have pic flag enabled.

Enhancement
Refactoring
LLVM
To-Be-Merged In Cache Upgrade