Bike Squad (troops)

-Starts with sergeant and 4 bikes (later can be decreased to 3 bikes and
attack bike)
-Everything else as Bike Squad

-Revised previous entries (linked to meltabomb shared entry)
Captain

-Linked to shared entries/groups/rules
-dynamic profile (changes type/stats based on wargear selection)
-more work on shared entries/groups/profiles/rules

-Some profiles not linked (TODO: revise rules on those profiles to make
them work when linked)
Sicarius, Lysander

-New shared rules
-Added Iron Halo to shared entries
-Links to shared stuff