3350 tool to automatically convert obsolete variables from input file

[ym1906]

I modified this validate_input function and added a CLI argument "replace_obsolete"

Now if you pass this argument when you run PROCESS it will automatically convert the variables, spit out the conversion in the terminal and write a comment in the input file where the name was changed.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 9.52381% with 38 lines in your changes missing coverage. Please review.

Project coverage is 28.43%. Comparing base (d9801ca) to head (b979161).
Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
process/main.py	9.52%	38 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3397      +/-   ##
==========================================
+ Coverage   27.71%   28.43%   +0.71%     
==========================================
  Files          77       77              
  Lines       18084    19215    +1131     
==========================================
+ Hits         5012     5463     +451     
- Misses      13072    13752     +680     

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[timothy-nunn]

I have found several bugs that its not unreasonable to expect will occur in real-world input files.

I need to additionally consider the merits of doing this in-situ while running PROCESS versus this being a script that produces another input file.