so: Set min_copper_clearance to 0.15mm for small pitch

Author: ubruhin

generate_so.py

@@ -54,6 +54,7 @@
     FootprintPad,
     LetterSpacing,
     LineSpacing,
+    MinCopperClearance,
     Mirror,
     Package,
     Package3DModel,
@@ -230,6 +231,7 @@ def _uuid(identifier: str) -> str:
             generated_by=GeneratedBy(''),
             categories=[Category(pkgcat)],
             assembly_type=AssemblyType.SMT,
+            min_copper_clearance=(MinCopperClearance(0.15) if (pitch < 0.5) else None),
         )
 
         for p in range(1, pin_count + 1):