Limit reserving to during restaurant open hours

[ipwnponies]

The schedules endpoint returns information for business hours. I think think this might be related to when the restaurant services mealpal orders:

The jsonpath is:

$.schedules[].restaurant.open
$.schedules[].restaurant.mpn_open

mealpy/tests/mealpy_test.py

Lines 223 to 226 in 3d10eb6

	'open': '2019-04-01T00:00:00Z',
	'close': '2019-04-01T00:00:00Z',
	'mpn_open': '2019-04-01T00:00:00Z',
	'mpn_close': '2019-04-01T00:00:00Z',

This can be useful to prevent user from reserving during closed times. Also can be added to list restaurants command output, so the user will have information to set up valid argument inputs.

[ipwnponies]

This will require investigation to verify this hypothesis, which will require an user with active subscription.