add tests proving null declarations work
properly handle null expressions in SAST
add tests proving null variables work!
Merge pull request #73 from rapid-lang/fix_decls

Fix null decls
add numbers
add BoolOpt type
equality operators
string format hax
get existing tests working with nullable primitives
null references in generated code
test std lib on CI build
simplify and standardize function names
Merge pull request #80 from rapid-lang/go_types

nullable types
fixed merge conflicts
progress on bool cast