[#103] add markers and highlites parameters to floorplans api

[clint156]

Description

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Adds markers and highlites parameters to the floorplan end point as optional paramters. If set to "on" or omitted, markers and highlites from the campus api are displayed in the initial rendering of the floor plan. If set to "none", then they are hidden in the initial rendering.

**Resolves #103 **

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