ID to Link SQLECmd Map and KAPE Target File

**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.

The issue names SQLECmd map files and KAPE target files but no repository files, tests, or entry points. Start by locating the definitions and the code that dynamically generates language-specific targets; done means the two file types share or expose a reliable ID without relying on comments.

Written by the indexing model from the issue text.