made a locals view for gf

Updated intro/city. Some notable features: nicer type info API, struct value attributes, expression attributes, better serialization, union serialization, some other stuff

release notes: https://github.com/cyman-ide/introcity/releases/tag/0.2

upcoming feature in my parser / introspection library thing: using expressions to determine the validity and size of data at runtime

Announcing intro/city: introspection and serialization tooling for C https://github.com/cyman-ide/introcity

yo dawg i heard you like introspection so i

working on an introspection library