fix #10175: restrict image name to String <256 chars
clean up image name determination
Add helper function to convert [sizeX sizeY] matrix into byte array
Add unit tests corresponding to new toByteArray() function
Update CreateImage example to use new toByteArray() function
Drop multi-channel requirement in CreateImage example
remove unnecessarily added import, thanks @manics
fix #10953: image names omit parent directories
remove superfluous suppression
Refactors name and description edit.
Remove unused fields.
Check if channel can be edited.
Reset the edit flag when new object is selected.
Add method to check if the group is a system group.
Do not allow to edit a system group.
Do not allow to edit system groups (see #11075)
Reset edit description flag.
change thumbnail image name matching to be exact
change test script indent
Add integration tests for the CLI chgrp plugin