Add support for char litterals and <<

Also streamline cc.py to do it all:
- cpp
- cc
- as

LD is still a separate step

tools/cc.ebnf

@@ -123,7 +123,7 @@ initializer_list: "{" [init_list_field ("," init_list_field)* ","? ] "}"
 
 
 label: IDENTIFIER
-litteral: SIGNED_NUMBER | ESCAPED_STRING | HEX_LITTERAL
+litteral: SIGNED_NUMBER | ESCAPED_STRING | HEX_LITTERAL | CHARACTER
 field: IDENTIFIER
 identifier: IDENTIFIER
 ?symbol: IDENTIFIER
@@ -145,6 +145,7 @@ struct_field: type IDENTIFIER sized_array* ";"
 IDENTIFIER: /[_a-zA-Z]\w*/
 COMMENT: /\/\/.*/
 HEX_LITTERAL: /0x[a-fA-F0-9]+/
+CHARACTER: /'[^']'/
 
 
 %import common.WS