[DF-5527] [DF-5608] added sprite item delegate. fix yaml parser and emitter. Added functional for add\remove files and folders in file system dock. remove memory leaks.
[DF-5527] fix QuickEd MacOS project
DF-5620 project fix
Merge branch 'development' of https://github.com/dava/dava.framework into development
[DF-1780] Merged with development