Append GP render workspace from dopepsheet panel

1.2.1

- added: bundle app_template to load "GR Render" workspace from it
- added: ui button in dopesheet to load GP render workspace

app_templates/GP_Render/__init__.py

@@ -0,0 +1,22 @@
+import bpy
+from bpy.app.handlers import persistent
+
+@persistent
+def setup_gp_render_workspace():
+
+    scn = bpy.context.scene
+    if not scn.camera:
+        scn.camera = next((o for o in scn.objects if o.type == 'CAMERA'), None)
+
+    # Use rendered preview shading.
+    for screen in bpy.data.screens:
+        for area in screen.areas:
+            for space in area.spaces:
+                if space.type == 'VIEW_3D':
+                    space.region_3d.view_perspective = 'CAMERA'
+    
+def register():
+    bpy.app.handlers.load_post.append(setup_gp_render_workspace)
+
+def unregister():
+    bpy.app.handlers.load_factory_startup_post.remove(setup_gp_render_workspace)