feat(gltf_auto_export): added support for exports in edit_mode

 * saves mode, switches to object mode for export & resets to original mode
 * solves issues with the gltf_exporter not working with edit mode

tools/gltf_auto_export/generate_and_export.py

@@ -19,6 +19,11 @@ def generate_and_export(addon_prefs, export_settings, gltf_output_path, temp_sce
     original_scene = bpy.context.window.scene
     # and selected collection
     original_collection = bpy.context.view_layer.active_layer_collection
+    # and mode
+    original_mode = bpy.context.object.mode if bpy.context.object != None else None
+    # we change the mode to object mode, otherwise the gltf exporter is not happy
+    if original_mode != None:
+        bpy.ops.object.mode_set(mode='OBJECT')
     # we set our active scene to be this one : this is needed otherwise the stand-in empties get generated in the wrong scene
     bpy.context.window.scene = temp_scene
 
@@ -42,3 +47,7 @@ def generate_and_export(addon_prefs, export_settings, gltf_output_path, temp_sce
     bpy.context.window.scene = original_scene
     # reset active collection
     bpy.context.view_layer.active_layer_collection = original_collection
+    # reset mode
+    if original_mode != None:
+        bpy.ops.object.mode_set( mode = original_mode )
+