Update campaign quote attribution in options dialog

Revised the attribution in the campaign options dialog from Captain Rex "Ironclad" Harper to Colonel David "Bear" Tarquin. This aligns the text with the current lore and character designation.

MekHQ/resources/mekhq/resources/CampaignOptionsDialog.properties

@@ -33,7 +33,7 @@ strategicOperationsParentTab.title=Operations
 lblGeneral.text=Welcome, Commander
 lblGeneralBody.text=<center><i>"Mercenary life is freedom with a price.\
   <br>Every contract is a choice, but every choice comes with a consequence."\
-  <br>- Captain Rex "Ironclad" Harper, Praxis Management</i>\
+  <br>- Colonel David "Bear" Tarquin, The Harriers</i>\
   <br>\
   <br>\u270E Custom system unique to <i>MekHQ</i>.\
   <br>\u2318 Documentation included in <i>MekHQ/docs</i>.\