feat: update virtools file importer and exporter

- use panel to organise property group in virtools file importer and exporter.
- move all ballance params and virtools params into ioport_shared module and enable different showcase according to the argument passed to show function presenting whether current window is importer or exporter.
- add multiple type ignore to ignore the error of bpy operator member field type hints.

bbp_ng/PROP_virtools_texture.py

@@ -30,14 +30,14 @@ class BBP_PG_virtools_texture(bpy.types.PropertyGroup):
         description = "When saving a composition textures or sprites can be kept as reference to external files or converted to a given format and saved inside the composition file.",
         items = _g_Helper_CK_TEXTURE_SAVEOPTIONS.generate_items(),
         default = _g_Helper_CK_TEXTURE_SAVEOPTIONS.to_selection(RawVirtoolsTexture.cDefaultSaveOptions)
-    )
+    ) # type: ignore
     
     video_format: bpy.props.EnumProperty(
         name = "Video Format",
         description = "The desired surface pixel format in video memory.",
         items = _g_Helper_VX_PIXELFORMAT.generate_items(),
         default = _g_Helper_VX_PIXELFORMAT.to_selection(RawVirtoolsTexture.cDefaultVideoFormat)
-    )
+    ) # type: ignore
     
 #region Virtools Texture Getter Setter