Require Admin function decorators enhance

[adscheevel]

These commits address issue #1001 related to the require_admin decorator in TM1py being more restrictive than the tm1 object security model. I've added a comment on that issue and will duplicate here with the required type of admin access for each function in the various TM1py service files. I tested each one with the specified access, but did not develop any test cases to be merged into the repo.

I've added is_data_admin, is_security_admin, and is_operations_admin decorators to the user.py object for easy checking when using tm1.security.get_user('<user>') or e.g. tm1.whoami.is_operations_admin in addition to assigning the property to the connection object in RestService which is the primary property for the @require_... decorators.

The update includes additional exception messages when the necessary type of admin access is not possessed.

TM1py functions that require some sort of admin and the level of admin required:

file	function	admin required
server	get_message_log_entries	ops
server	write_to_message_log	data
server	get_transaction_log_entries	data
server	get_audit_log_entries	data
server	get_last_process_message_from_messagelog	ops
server	get_static_configuration	ops
server	get_active_configuration	ops
server	update_static_configuration	ops
server	save_data	data
server	delete_persistent_feeders	data
server	start_performance_monitor	ops
server	stop_performance_monitor	ops
server	activate_audit_log	ops
server	deactivate_audit_log	ops
monitoring	disconnect_all_users	admin
monitoring	close_all_sessions	admin
security	create_user	security
security	create_group	security
security	update_user	security
security	delete_user	security
security	delete_group	security
security	add_user_to_groups	security
security	remove_user_from_group	security
security	security_refresh	admin
cube	delete	data
cube	update_storage_dimension_order	data
cube	load	data
cube	unload	data
cube	cube_save_data	data
element	_element_is_ancestor_ti	data
process	execute_ti_code	data
process	evaluate_boolean_ti_expression	data
process	evaluate_ti_expression	data
cell	clear	data,ops
cell	clear_with_mdx	data,ops
cell	write_through_unbound_process	data,ops
cell	write_through_blob	data,ops
cell	_execute_view_csv_use_blob	data,ops
cell	_execute_mdx_csv_use_blob	data,ops
hierarchy	update_or_create_hierarchy_from_dataframe	data,ops

[MariusWirtz]

Nice work @adscheevel.

I agree we can skip creating test cases for the new decorators.

[MariusWirtz]

Looking good!

Only the api/v1/ should be skipped in the URL for compliance with recently merged v12 feature branch.
Then we can merge