Split target files to build cql to elm, and elm to c# (and resource)
Use the cql to elm target file in the CoreTests so that modified cql gets compiled to elm during build
Fix cql that could not compile to elm
Added a cql test to check behavior of date intervals where precision differs between them (see define "DateTimeIntervalHighPrecisionOverlapsDateTimeIntervalLowPrecision" in library "CqlIntervalOperatorsTest". The test is ignored,. because the outcome isn't as expected and needed to be discussed
ℹ️Work for issue #368