Finances Tab: Price Multipliers Panel Cleanup and Expansion

[Windchild292]

This expands the customizability and cleans up the price multipliers options both code-wise and visually, plus fixes a bug where damaged parts didn't have their quality taken into account when determining the price.

[codecov]

Codecov Report

Merging #2775 (82b8024) into master (b0887cb) will increase coverage by 0.01%.
The diff coverage is 10.67%.

@@             Coverage Diff              @@
##             master    #2775      +/-   ##
============================================
+ Coverage     10.60%   10.61%   +0.01%     
- Complexity     3861     3875      +14     
============================================
  Files           719      719              
  Lines        100083   100229     +146     
  Branches      16400    16413      +13     
============================================
+ Hits          10609    10635      +26     
- Misses        88087    88213     +126     
+ Partials       1387     1381       -6     

Impacted Files	Coverage Δ
.../src/mekhq/gui/adapter/PartsTableMouseAdapter.java	0.00% <0.00%> (ø)
...Q/src/mekhq/gui/adapter/UnitTableMouseAdapter.java	0.00% <0.00%> (ø)
...HQ/src/mekhq/gui/dialog/CampaignOptionsDialog.java	0.00% <0.00%> (ø)
MekHQ/src/mekhq/campaign/parts/Part.java	34.94% <9.09%> (-0.14%)	⬇️
MekHQ/src/mekhq/campaign/CampaignOptions.java	26.93% <24.54%> (+0.46%)	⬆️
MekHQ/src/mekhq/campaign/unit/Unit.java	20.23% <71.42%> (-0.02%)	⬇️
MekHQ/src/mekhq/campaign/mission/AtBContract.java	19.01% <0.00%> (-0.30%)	⬇️
...ekhq/campaign/universe/RandomFactionGenerator.java	56.17% <0.00%> (ø)
.../mekhq/campaign/mission/enums/AtBContractType.java	13.28% <0.00%> (+0.69%)	⬆️
...ekHQ/src/mekhq/campaign/market/ContractMarket.java	58.95% <0.00%> (+0.80%)	⬆️

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