Bug: KiCad: Fileformat: missing island, dnp, via (#43)

* Fix: vias only have 1 size value

* Add: DNP footprint attr

* Add: Island bool for filled polygons

src/faebryk/exporters/pcb/kicad/transformer.py

@@ -533,7 +533,7 @@ def insert_via(
         self.pcb.vias.append(
             Via(
                 at=C_xy(*coord),
-                size=C_wh(size_drill[0], size_drill[0]),
+                size=size_drill[0],
                 drill=size_drill[1],
                 layers=["F.Cu", "B.Cu"],
                 net=net,

src/faebryk/libs/kicad/fileformats.py

@@ -622,6 +622,7 @@ class C_pts:
 class C_footprint:
     class E_attr(SymEnum):
         smd = auto()
+        dnp = auto()
         board_only = auto()
         through_hole = auto()
         exclude_from_pos_files = auto()
@@ -884,7 +885,7 @@ class C_net:
         @dataclass
         class C_via:
             at: C_xy
-            size: C_wh
+            size: float
             drill: float
             net: int
             uuid: UUID
@@ -962,6 +963,9 @@ class E_keepout_bool(SymEnum):
             @dataclass(kw_only=True)
             class C_filled_polygon:
                 layer: str
+                island: Optional[bool] = field(
+                    **sexp_field(positional=True), default=None
+                )
                 pts: C_polygon.C_pts
 
             net: int