Toppic search result reading

[nbollis]

Added in ability to read and write Toppic search result files in the following formats

prsm
prsm_single
proteoform
proteoform_single

The single files only have one id per row in the tsv file.
The non-single files will have alternative id's as rows underneath the main ID, similar to our ambiguity.

[codecov]

Codecov Report

Merging #735 (dda045f) into master (d147f54) will increase coverage by 0.28%.
Report is 1 commits behind head on master.
The diff coverage is 98.82%.

❗ Current head dda045f differs from pull request most recent head e858b2b. Consider uploading reports for the commit e858b2b to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #735      +/-   ##
==========================================
+ Coverage   74.40%   74.68%   +0.28%     
==========================================
  Files         171      173       +2     
  Lines       28862    29201     +339     
  Branches     2862     2898      +36     
==========================================
+ Hits        21474    21809     +335     
- Misses       6902     6903       +1     
- Partials      486      489       +3     

Files	Coverage Δ
...ernalResults/IndividualResultRecords/ToppicPrsm.cs	100.00% <100.00%> (ø)
mzLib/Readers/Util/Converters.cs	92.85% <100.00%> (+5.35%)	⬆️
mzLib/Readers/Util/SupportedFileTypes.cs	91.83% <100.00%> (+2.64%)	⬆️
...ernalResults/ResultFiles/TopPICSearchResultFile.cs	98.39% <98.39%> (ø)

[Alexander-Sol]

Looks great! I had a couple small comments/suggestions on the ToppicPrsm class, but they're minor