feat: Add KoikatsuBlenderPipeline addon with import/export functionality

- Add core addon files (__init__.py, KKPanel.py, preferences.py, common.py)
- Add import pipeline with armature, mesh, and material modification modules
- Add export pipeline with material baking and FBX preparation utilities
- Add material combiner tool for texture atlas generation and optimization
- Add extras utilities for animation, rigging, and asset management
- Add bone orientation data from better_fbx for accurate skeletal structure
- Add comprehensive documentation and wiki with multi-language support (EN, JP, ZH)
- Add animation library retargeting lists for ARP and Rokoko motion capture
- Add Rigify integration scripts for advanced rigging workflows
- Add shader file (KK Shader V8.0.blend) for material rendering
- Add manifest and license files for addon distribution
- Add changelog documenting version history and improvements
- Initialize complete Blender addon project for Koikatsu character import/export

extras/rigifywrapper.py

@@ -0,0 +1,27 @@
+'''
+Wrapper for the rigifyscripts folder
+'''
+import bpy, traceback
+from .. import common as c
+from ..importing.postoperations import post_operations
+from ..interface.dictionary_en import t
+
+class rigify_convert(bpy.types.Operator):
+    bl_idname = "kkbp.rigifyconvert"
+    bl_label = "Convert for rigify"
+    bl_description = t('rigify_convert_tt')
+    bl_options = {'REGISTER', 'UNDO'}
+    
+    def execute(self, context):
+        try:
+            bpy.context.scene.kkbp.armature_dropdown = 'B'
+            post_operations.retreive_stored_tags()
+            post_operations.apply_rigify()
+            return {'FINISHED'}
+        except:
+            c.kklog('Unknown python error occurred', type = 'error')
+            c.kklog(traceback.format_exc())
+            self.report({'ERROR'}, traceback.format_exc())
+            return {"CANCELLED"}
+
+