ID to Link KAPE Target File and SQLECmd Map

**Is your feature request related to a problem? Please describe.**
Currently, we have to rely on comments to link a SQLECmd map file to a KAPE target file. We do this because we dynamically generate our own language-specific targets from the target files and want to associate the query defined within the SQL map file to the target.

**Describe the solution you'd like**
It would be great to either share the map/target file's ID in each's definition, or generate a common ID to use for linking the two files.

**Describe alternatives you've considered**
Keying off of comments. However, this is a bit of a hack, and does not always work as expected.