Use cell2struct to generate object dictionary and add delete column
Add generic function to delete objects of a given type by ids
Add specific functions to delete projects, datasets, images, screens & plates
Fix description of delete functions (ownership, annotation deletion)
Add function to delete plate acquisitions
Move getObjectTypes() function to the root folder
Improve description of annotations fate in delete functionsß∑
Merge pull request #952 from sbesson/10386_delete

OMERO.matlab: add delete functions (see #10386)