MetaCG v0.4.0

Changelog

Functionality

• MCGWriter to serialize the Callgraph into a MetaCG file.
• MetaDataHandler required value function to serialize the MetaData for MCGWriter
• Objects to model and consolidate file format information of MetaCG file format
• MCGManager can handle multiple call-graphs at a time

Fixes

• MCG file format version in CGMerge now read from first non-null file content
• Building error caused by static assert: ambigious operator
• Explicit list all required clang/llvm libraries as new versions of ld are stricter and don't link libraries just because a symbol in them is referenced.

Infrastructure

• Use C++17 instead of 20 to prevent build errors with GCC 11.2
• Improved library dependencies handling in CMake (especially for pre-installed libraries)
• Better Extra-P integration in builds

Versions

• Bumps nlohmann-json version to 3.10.5 (other versions may/should work too)