Add logging relation jupyter-controller #875

Job	Run time
Publish Charm / Generate the Charm Matrix	2s
Run Tests / Individual charm's integration tests (controller)	15m 15s
Run Tests / Bundle Integration	18m 13s
Run Tests / Individual charm's integration tests (ui)	15m 54s
Run Tests / Lint Code (controller)	19s
Run Tests / Unit Test (controller)	23s
Run Tests / Lint Code (ui)	16s
Run Tests / Unit Test (ui)	26s
Run Tests / Check libraries (jupyter-controller) / Lint	8s
Run Tests / Check libraries (jupyter-controller) / Check libraries	23s
Run Tests / Check libraries (jupyter-ui) / Check libraries	17s
Run Tests / Check libraries (jupyter-ui) / Lint	11s
Publish Charm / Publish Charm (./charms/jupyter-ui)	4m 59s
Publish Charm / Publish Charm (./charms/jupyter-controller)	6m 21s
	1h 3m 7s

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