A few text joining functions for ReportingUtilities

[WeaverThree]

Figured I'd break these out of my Refit rework.

For example, surroundIf("(", maybeText, ")") will return "(<maybeText>)" or "" depending on the status of maybeText

separateIf(text1, ", ", text2) will return one of "<text1>, <text2>", "<text1>", "<text2>", or "" based on the status of the first and last parameters.

They're pretty simple, but can declutter a lot of the simpler cases of things where using a StringBuilder or StringJoiner seems like overkill.

The names are inspired by WinAmp title formatting marcos ^^;.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 10.53%. Comparing base (0702c03) to head (fb6c52a).
Report is 28 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5135      +/-   ##
============================================
- Coverage     10.53%   10.53%   -0.01%     
  Complexity     6041     6041              
============================================
  Files           956      956              
  Lines        134213   134253      +40     
  Branches      19489    19501      +12     
============================================
+ Hits          14140    14142       +2     
- Misses       118722   118760      +38     
  Partials       1351     1351              

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[WeaverThree]

If you're reading this on the Discord and it looks confusing, Discord ate half of my exapmle strings >.>