Refactor the MetadataStore Base Class

[jieguangzhou]

trafficstars

Implement all functionality-specific functions for SuperDuperDB in the base MetadataStore.

• delete_parent_child
• create_component
• create_job
• create_parent_child
• get_job
• update_job
• show_components ....

For all subclasses, unless customized operations are needed, only the four basic functions of create, read, update, and delete will need to be implemented.

def _create(self, table, data): ...
def _read(self, table, filter): ...
def _updated(self, table, filter, new_data):
def _delete(self, table, delete):