Fix string split in glyco protein parsimony

[trishorts]

Some protein accessions contain hyphens. These unexpected hyphens cause a crash in string.split functions for hyphen. This PR replaces the hyphen with the hashtag eliminating the crash.

[codecov]

Codecov Report

Merging #2305 (16ee6e7) into master (20713d6) will not change coverage.
Report is 1 commits behind head on master.
The diff coverage is 95.00%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2305   +/-   ##
=======================================
  Coverage   92.15%   92.15%           
=======================================
  Files         135      135           
  Lines       20644    20644           
  Branches     2841     2842    +1     
=======================================
  Hits        19025    19025           
  Misses       1134     1134           
  Partials      485      485           

Files Changed	Coverage Δ
MetaMorpheus/TaskLayer/XLSearchTask/WriteFile.cs	97.74% <94.44%> (ø)
...TaskLayer/GlycoSearchTask/GlycoProteinParsimony.cs	76.36% <100.00%> (ø)

📢 Have feedback on the report? [Share it here](https://about.codecov.io/codecov-pr-comment-feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=smith-chem-wisc).