Close #9120: Stop Clan Characters Generating Melee SPAs Based on Era & Homeworld Clan Status

[IllianiBird]

Close #9120

Clan characters can no longer receive the Melee Specialist or Melee Master SPAs, outside of player intervention.

The restriction follows the following conditions:

• If before the Dark Ages, no Clan characters will receive these SPAs.
• If after the Late Republic era, no Homeworld Clan characters will receive these SPAs but Inner Sphere Clan characters can.

This better brings out code in-line with canon.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 23 lines in your changes missing coverage. Please review.
✅ Project coverage is 15.22%. Comparing base (f2bf383) to head (0da1b8e).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...onnel/generator/SingleSpecialAbilityGenerator.java	0.00%	13 Missing ⚠️
MekHQ/src/mekhq/campaign/universe/Faction.java	0.00%	5 Missing ⚠️
MekHQ/src/mekhq/campaign/universe/eras/Eras.java	0.00%	5 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #9121      +/-   ##
============================================
+ Coverage     15.20%   15.22%   +0.01%     
- Complexity     9335     9345      +10     
============================================
  Files          1311     1311              
  Lines        173407   173430      +23     
  Branches      26220    26227       +7     
============================================
+ Hits          26372    26400      +28     
- Misses       143957   143963       +6     
+ Partials       3078     3067      -11     

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[Sleet01]

LGTM