Blender Git Loki

Proxy Protection Fixes

* Mostly revert #24880: Transform Locks affecting animation system. This
was implemented as a feature request from Nathan but was not the
intended functionality, and actually gives problems instead. The transform
locks should really only affect what the user can do, not if the property
can be animated internally.
* Revert #25868: fix for lib linked scenes not animating. This was needed
due to the above feature, but meant that all lib linked properties were
editable in the UI.
* Make bone properties of on proxy-protected layers not editable. They will
be overriden on reload/redo like lib linked data, so should not be edited.