[PoC] Rework permissions too limit some important functionality

TODO:
- [x] rework all bundles to set basic permissions,
- [ ] move permissions to configs(?),
- [x] extend UI to easier role definition management,
- [x] hide menu items based on roles,
Guys, please check my comments:

> Note there is hack on `isBackend()` usage mostly caused by that I couldn't find elegant way to disable checks for those perms in frontend part of website...

So if you have in mind better approach than this, shoot ;)