Adds Bughunt, Incursion, Spy vs Spy, Tower Defense (#7698)

rscadd: "Added three new gamemodes: Tower Defense, Bughunt, Spy vs. Spy."
    rscadd: "Bughunt, mercenary and borer, needs twenty required players and five required enemies."
    tweak: "Borers have received some miscellaneous fixes and tweaks across the board. They should overall work better now."
    rscadd: "Borers can now awaken psionics in their hosts. Maybe it's not a bad idea to get a brain slug after all..."
    rscadd: "Spy vs. Spy, traitor and renegade, needs four required players."
    tweak: "Changed how renegades work a bit. You're not traitors! You're paranoid people who smuggled a gun to work and are working to keep themselves safe."
    rscadd: "Tower Defense, mercenary, heist and ninjas, needs thirty required players and ten required enemies. Good luck!"

code/modules/psionics/faculties/coercion.dm

@@ -287,7 +287,7 @@
 	use_description =   "Activate an empty hand on disarm intent to detect nearby psionic signatures."
 
 /datum/psionic_power/coercion/psiping/invoke(var/mob/living/user, var/mob/living/target)
-	if((target && user != target) && user.a_intent != I_HELP)
+	if((target && user != target) || user.a_intent != I_HELP)
 		return FALSE
 	. = ..()
 	if(.)

code/modules/psionics/faculties/psychokinesis.dm

@@ -37,11 +37,11 @@
 	cost =            5
 	cooldown =        10
 	min_rank =        PSI_RANK_MASTER
-	use_description = "Click on or otherwise activate an empty hand while on help intent to manifest a psychokinetic tool. Use it in-hand to switch between tool types."
+	use_description = "Click on or otherwise activate an empty hand while on grab intent to manifest a psychokinetic tool. Use it in-hand to switch between tool types."
 	admin_log = FALSE
 
 /datum/psionic_power/psychokinesis/tinker/invoke(var/mob/living/user, var/mob/living/target)
-	if((target && user != target) || user.a_intent != I_HELP)
+	if((target && user != target) || user.a_intent != I_GRAB)
 		return FALSE
 	. = ..()
 	if(.)