Sync naming of physical/logical quota names

[korydraughn]

Physical quotas uses limit and over.

irods_client_http_api/API.md

Lines 1517 to 1518 in 9cd953e

	"limit": 0,
	"over": 0,

The logical quotas design uses maximum and over. See PR #510 for the logical quotas work.

Physical quotas uses quota for specifying the maximum number of bytes.

irods_client_http_api/API.md

Line 1557 in 9cd953e

--data-urlencode 'quota=<integer>' # The number of bytes which will serve as the quota limit.

Update the physical quotas interface to use maximum instead of limit/quota.