Incorporating structure:TextFormat

[csarven]

Consider how to deal with or incorporate the optional or whatever in structure:KeyFamily structure:Components. Probably should use datatype on the range of the component property?

[csarven]

With the exception of TODO: Timespan, Count, InclusiveValueRange, ExclusiveValueRange, Incremental, ObservationalTimePeriod.

See also commit 0b8428d