Create fitz.i

This pertains to Page method `get_drawings()`.
The set of keys for "fs" paths already is complete by definition - so only fill and stroke paths require special attention.
Each type should have the complete list of keys as a "fs" path would have, so we generate `None` values where necessary for "f" and "s" paths only.
In view of performance, this is probably faster then subclassing `dict` and giving it the `__missing__()` method to achieve the same thing.

fitz/fitz.i

@@ -6268,10 +6268,8 @@ def get_oc_items(self) -> list:
             It also adds default items that are missing in original path types.
             """
             allkeys = (
-                    ("closePath", False), ("fill", None),
-                    ("color", None), ("width", 0), ("lineCap", [0]),
-                    ("lineJoin", 0), ("dashes", "[] 0"), ("stroke_opacity", 1),
-                    ("fill_opacity", 1), ("even_odd", True),
+                    "closePath", "fill", "color", "width", "lineCap",
+                    "lineJoin", "dashes", "stroke_opacity", "fill_opacity", "even_odd",
                 )
             val = self.get_cdrawings(extended=extended)
             for i in range(len(val)):
@@ -6294,9 +6292,9 @@ def get_oc_items(self) -> list:
                             item = tuple([cmd] + [Point(i) for i in rest])
                         newitems.append(item)
                     npath["items"] = newitems
-                if npath["type"] in ("f", "s", "fs"):
-                    for k, v in allkeys:
-                        npath[k] = npath.get(k, v)
+                if npath["type"] in ("f", "s"):
+                    for k in allkeys:
+                        npath[k] = npath.get(k)
                 val[i] = npath
             return val