fixes new merge lower name node format

0.3.0

- fix: viewlayer exclude attribution error
- fix: force PNG 8bit 15% compression for output settings
- change: GP dopesheet merge ops -> viewlayer merge instead of creating alphaover node
- feat: batch to_lower name
- feat: copy active output node format to selected

gen_vlayer.py

@@ -181,6 +181,7 @@ def connect_render_layer(rlayer, ng=None, out=None, frame=None):
     if not out:
         # color = (0.2,0.3,0.5)
         out = fn.create_node('CompositorNodeOutputFile', tree=scene.node_tree, location=(fn.real_loc(ng)[0]+500, fn.real_loc(ng)[1]+50), width=600) # =(ng.location[0]+600, ng.location[1]+50)
+        fn.set_file_output_format(out)
         out.name = out_name
         out.parent = frame
         out.base_path = f'//render/{bpy.path.clean_name(obname)}'