Added auto-completion for RMG thermo and kinetics libraries based on the chemistry set

[alongd]

RMG's libraries are an important asset, yet it takes an expert to know which library to use per application.
This contribution added a feature that allows users to request auto-completion for their libraries by just describing the application of their chemistry set: ['primary', 'nitrogen', 'sulfur', 'combustion', 'CH_pyrolysis']
The recommended libraries will be appended in addition to any user-supplied libraries (not adding duplicates)
Tests were added

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 72.72727% with 12 lines in your changes missing coverage. Please review.

Project coverage is 47.54%. Comparing base (2dbc42a) to head (20ac269).

Files with missing lines	Patch %	Lines
t3/schema.py	53.33%	7 Missing ⚠️
t3/main.py	80.76%	2 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #160      +/-   ##
==========================================
+ Coverage   47.30%   47.54%   +0.23%     
==========================================
  Files          25       25              
  Lines        3420     3458      +38     
  Branches      922      934      +12     
==========================================
+ Hits         1618     1644      +26     
- Misses       1597     1606       +9     
- Partials      205      208       +3     

Flag	Coverage Δ
	?
unittests	47.54% <72.72%> (+0.23%)	⬆️

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