Add --chunk-size paramenter in ph:photo sets:component-attributes:update
Move some commands to different namespaces for consistency
 
ph:datasets:component-attrubutes:xxx → ph:datasets:components:attrubutes:xxx
ph:datasets:component-records:xxx → ph:datasets:components:records:xxx
Move some postgresql templates
Implement ph:datasets:components:attributes:list command
Implement ph:datasets:components:attributes:delete command + minor code refactorings
Implement ph:datasets:components:attributes:rename command

+ minor fixes in ph:datasets:components:attributes:delete command
Restrict updating and deleting attribute id
Refactor attribute updating process

Reading and writing the db is not the responsibility of updaters any more