Introduced the : lexeme, renamed the scope stuff to symbol tree
tree0abffef656a455c6a48a979843a420abd8253e85
drwxr-xr-x - frith
-rw-r--r-- 0 function.cpp
drwxr-xr-x - interpreter
drwxr-xr-x - lexer
-rw-r--r-- 682 main.cpp
-rw-r--r-- 559 symbol.cpp
drwxr-xr-x - variable