v0.4.2

This version improved performance by supporting -print-changed in llvm

v0.4.1 release

Add AST presentation and highlight.

v0.4 version release

This version implemented the mapping between source code to assembly code.

v0.3 release version

This release fully implemented the core features of vscode-llvm.

1. command parsing - it knows clang commands, can get the inner workflow of compiler and show IR for before and after each pass.
2. run specific llvm pass
3. run compare mode to compare two compiler workflows.

v0.2 release version

update to v0.2