MekHQ part of fix for #4648

[Sleet01]

Mek Mortars and IS BA Tube Artillery are excluded from the MekHQ "Spend XP" SPA menu because they have an AT2 Class of "NONE". By rights this whole AT2 class thing should be torn out, but it seemed more sensible to massage the existing check and add classes to the missing weapons, rather than refactoring a lot of code across all three projects.

This patch restricts the range of AT classes that will be rejected to just the existing Naval / Large Ship weapons.
The full fix also relies on the MegaMek PR here.

[codecov]

Codecov Report

Attention: 48 lines in your changes are missing coverage. Please review.

Comparison is base (8c9eed9) 10.63% compared to head (d0e4582) 10.63%.
Report is 17 commits behind head on master.

Files	Patch %	Lines
MekHQ/src/mekhq/gui/dialog/MHQOptionsDialog.java	0.00%	29 Missing ⚠️
MekHQ/src/mekhq/campaign/Campaign.java	0.00%	7 Missing ⚠️
MekHQ/src/mekhq/utilities/MHQXMLUtility.java	0.00%	7 Missing ⚠️
...ekHQ/src/mekhq/campaign/personnel/ranks/Ranks.java	33.33%	3 Missing and 1 partial ⚠️
...Q/src/mekhq/campaign/personnel/SpecialAbility.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3810      +/-   ##
============================================
- Coverage     10.63%   10.63%   -0.01%     
  Complexity     5474     5474              
============================================
  Files           834      834              
  Lines        113768   113811      +43     
  Branches      17196    17198       +2     
============================================
+ Hits          12103    12106       +3     
- Misses       100459   100499      +40     
  Partials       1206     1206              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.