Add support for relative include

codegen/datatypes.py

@@ -169,6 +169,7 @@ class CFunc:
 class CInclude:
     header: Union[str, "CHeader"]
     local: bool = False
+    same_dir: bool = False
 
     def __str__(self) -> str:
         if isinstance(self.header, CHeader):
@@ -179,6 +180,9 @@ class CInclude:
         if self.local:
             open_symbol = '"'
             close_symbol = '"'
+
+            if self.same_dir:
+                name = f"./{name}"
         else:
             open_symbol = '<'
             close_symbol = '>'