feat: enhance compiler

- Add comments and test for it
- Add semicolon as required end of some expressions
- Add new arguments parser
- Add multi-file compilation
- Add colors in output

include/compiler/fzl_token.h

@@ -61,11 +61,12 @@ typedef struct
   bool store_value;
   void *value;
   uint16_t value_sz;
+  char *filename;
 } fzl_token_t;
 
 // Allocate new token
 fzl_token_t *fzl_mktoken(const fzl_toktype_t type, size_t line, size_t col,
-                         void *value, size_t value_sz);
+                         void *value, size_t value_sz, char *filename);
 
 // Free token and its contents
 void fzl_freetoken(fzl_token_t *token);