feat: add fix material feature.

bring ballance virtools helper used fix_texture (renamed as fix material to correspond with the real object operated by this function) into blender plugin.

bbp_ng/OP_MTL_fix_material.py

@@ -0,0 +1,36 @@
+import bpy
+from . import PROP_virtools_material, PROP_preferences
+
+class BBP_OT_fix_all_material(bpy.types.Operator):
+    """Fix All Materials by Its Referred Ballance Texture Name."""
+    bl_idname = "bbp.fix_all_material"
+    bl_label = "Fix Material"
+    bl_options = {'UNDO'}
+    
+    @classmethod
+    def poll(cls, context):
+        return PROP_preferences.get_raw_preferences().has_valid_blc_tex_folder()
+    
+    def invoke(self, context, event):
+        wm = context.window_manager
+        return wm.invoke_confirm(self, event)
+    
+    def execute(self, context):
+        # do work and count 
+        counter_all: int = 0
+        counter_suc: int = 0
+        for mtl in bpy.data.materials:
+            counter_all += 1
+            if PROP_virtools_material.fix_material(mtl):
+                PROP_virtools_material.apply_to_blender_material(mtl)
+                counter_suc += 1
+
+        # report and return
+        self.report({'INFO'}, f'Fix {counter_suc}/{counter_all} materials.')
+        return {'FINISHED'}
+
+def register() -> None:
+    bpy.utils.register_class(BBP_OT_fix_all_material)
+
+def unregister() -> None:
+    bpy.utils.unregister_class(BBP_OT_fix_all_material)