Expose FollowMobj-related functions to Lua

SMS Alfredorequested to merge
SMS_Alfredo/SRB2:expos-follow into next

Part of a series of isolations from !1472 (closed). This one exposes P_DoTailsOverlay and P_DoMetalJetFume to Lua. It also introduces P_DoFollowMobj to allow Lua to call any FollowMobj's behavior at any time.

Edited by SMS Alfredo

Merge request reports