Add GeneratorEntityCommand class
remove duplicate code in GeneratorEntityContentCommand class and added to GeneratorEntityCommand class
remove duplicate code in GeneratorEntityConfigCommand class and added to GeneratorEntityCommand class
udpate README.md with the new entity generator commands
Merge remote-tracking branch 'upstream/master' into duplicate_code_entity_generator_command
add getEntityType and getCommandName on GeneratorEntityCommand class
add getFormType and getCommandName on GeneratorFormCommand class
initialize FormType and CommandName on GeneratorConfigFormBaseCommandclass
initialize EntityType and CommandName on GeneratorEntityConfigCommand class
initialize EntityType and CommandName on GeneratorEntityContentCommand class
adding missing docblock
removing unnecessary line breaks
Merge pull request #185 from omero/duplicate_code_entity_generator_command

Duplicate code entity generator command
Remove TODO comment
Typehint object parameters
Remove unused variable argument
Add end newline character
Merge pull request #186 from jmolivas/code-fixes

Code fixes
Rename entity controllers to handlers
Merge pull request #188 from jmolivas/Issue_187

Rename entity controllers to handlers