Fix #OTD-434 adding new models for gtfs extention

[CaylaSavitzky]

Summary:

These changes add: Facility FacilityProperty FacilityPropertyDefinition RouteNameException DirectionNameException

Expected behavior:

should have little impact other than allowing the consumption of data that corresponds to these models

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• [x] Format the title like "Fix # - short description of fix and changes"
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[CaylaSavitzky]

very glad not to sign a CLA updated the copyright!