incorporate json wrapper for generating psi4 input files

[vtlim]

Did not go further to process JSON output files, nor specify specific settings for JSON input file (charge, multiplicity, frozen atoms, etc.) Not sure if the wrapper has those capabilities based on going through all the examples in the psi4 repo. Addresses part of #7.

[codecov-io]

Codecov Report

Merging #29 into master will increase coverage by 2.65%.
The diff coverage is 81.81%.

@@            Coverage Diff             @@
##           master      #29      +/-   ##
==========================================
+ Coverage    71.2%   73.86%   +2.65%     
==========================================
  Files          13       13              
  Lines         896      945      +49     
==========================================
+ Hits          638      698      +60     
+ Misses        258      247      -11

Impacted Files	Coverage Δ
tests/test_smi2confs.py	81.81% <0%> (ø)	⬆️
tests/test_filterConfs.py	83.33% <0%> (ø)	⬆️
tests/test_procTags.py	89.74% <0%> (ø)	⬆️
tests/test_getTurbResults.py	80% <0%> (ø)	⬆️
quanformer/get_psi_results.py	86.66% <50%> (ø)
tests/test_get_psi_results.py	95.83% <75%> (ø)
tests/test_confs_to_psi.py	91.3% <81.81%> (ø)
quanformer/confs_to_psi.py	85.98% <85.98%> (ø)

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