Add rooms list to location edit page and render rooms in moderation page

[birded]

Can dynamically add fields for classrooms in the location edit page, but isn't connected to the backend.

[coveralls]

Pull Request Test Coverage Report for Build 1533993687

• 5 of 33 (15.15%) changed or added relevant lines in 3 files are covered.
• 2 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-2.3%) to 43.984%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
client/src/pages/ModerationPage/Submission.tsx	0	1	0.0%
client/src/pages/LocationEditPage/index.tsx	5	18	27.78%
src/routes/locations.ts	0	14	0.0%

Files with Coverage Reduction	New Missed Lines	%
client/src/pages/LocationEditPage/index.tsx	1	27.69%
src/routes/locations.ts	1	30.0%

Totals
Change from base Build 1533137955:	-2.3%
Covered Lines:	311
Relevant Lines:	576

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💛 - Coveralls