Expose lobby options to localisation.

mods/ra/languages/rules/en.ftl

@@ -0,0 +1,23 @@
+## Player
+infantry-only = Infantry Only
+low = Low
+medium = Medium
+no-superweapons = No Superweapons
+unrestricted = Unrestricted
+
+kill-bounties =
+    .label = Kill Bounties
+    .description = Players receive cash bonuses when killing enemy units
+
+redeployable-mcvs =
+    .label = Redeployable MCVs
+    .description = Allow undeploying Construction Yard
+
+reusable-engineers =
+    .label = Reusable Engineers
+    .description = Engineers remain on the battlefield after capturing a structure
+
+## World
+mcv-only = MCV Only
+light-support = Light Support
+heavy-support = Heavy Support