transformations: (csl) add csl.rpc op

[dk949]

When constructing the program module in csl-wrapper-to-csl:

• find the memcpy/memcpy module
• get the LAUNCH color from it
• use it in the csl.rpc op.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.99%. Comparing base (728c50b) to head (857edb7).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3143   +/-   ##
=======================================
  Coverage   89.99%   89.99%           
=======================================
  Files         427      427           
  Lines       53854    53858    +4     
  Branches     8343     8344    +1     
=======================================
+ Hits        48468    48472    +4     
  Misses       4038     4038           
  Partials     1348     1348           

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[n-io]

LGTM, though it might also go into the pass setting up a csl_wrapper

[dk949]

LGTM, though it might also go into the pass setting up a csl_wrapper

It could, but this felt like the better place for it, since it's where we fix all the things relating to CSL, like layout and imports.