allow Jinja substitutions in file names

[tomkane-dls]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.04%. Comparing base (7f9a915) to head (b2cf5c0).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #260   +/-   ##
=======================================
  Coverage   96.03%   96.04%           
=======================================
  Files          13       13           
  Lines         984      985    +1     
=======================================
+ Hits          945      946    +1     
  Misses         39       39           

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[adedamola-sode]

This will mainly impact the JsonMap, there might be some unobserved behaviour with the the program trying to search through the techui-support directory and not finding the file (also dependent on the version of techui-support). But it's also easily reversible, and I'd like to see it on VISR.

[OCopping]

if you want to test this on an ixx-services repo, you can tag the techui-builder commit as something like this:
0.7.8-beta.1
then run locally with
uvx techui-builder@0.7.8b1 <command>