[Build] Added support to read the version from the CMake cache.
[Build] Added support to read the version from the CMake cache.

airsim/airinv,airsim/airrac,airsim/simcrs,airsim/simlfs,jwakely/simcrs,airsim/simlfs,jwakely/rmol,jwakely/travelccm,airsim/rmol,airsim/avlcal,jwakely/rmol,airsim/simcrs,jwakely/airinv,airsim/airinv,airsim/avlcal,jwakely/rmol,jwakely/simfqt,jwakely/airinv,airsim/airrac,airsim/rmol,airsim/airinv,airsim/airinv,airsim/sevmgr,jwakely/simfqt,jwakely/airrac,airsim/tvlsim,jwakely/airinv,airsim/avlcal,airsim/airinv,jwakely/simcrs,airsim/trademgen,airsim/simfqt,jwakely/rmol,jwakely/airinv,airsim/tvlsim,airsim/tvlsim,airsim/simlfs,airsim/airinv,airsim/airinv,airsim/travelccm,airsim/tvlsim,airsim/rmol,jwakely/simcrs,airsim/simfqt,jwakely/airinv,airsim/simcrs,airsim/airtsp,jwakely/simfqt,airsim/sevmgr,jwakely/trademgen,airsim/tvlsim,jwakely/airinv,airsim/trademgen,airsim/simfqt,airsim/avlcal,jwakely/trademgen,airsim/trademgen,airsim/airtsp,airsim/sevmgr,airsim/airrac,jwakely/travelccm,airsim/airinv,airsim/tvlsim,airsim/tvlsim,airsim/travelccm,jwakely/airinv,jwakely/airinv,airsim/rmol,airsim/airinv,airsim/tvlsim,jwakely/airrac,jwakely/airrac,airsim/tvlsim,jwakely/trademgen,jwakely/airinv