feat(scripts): Portabello's frog bridge puts its tongue out for players who earned it

WBL_Frog_Bridge had no script. As the live script: when a player who finished mission 946 comes within 25 units,
the four FrogBridge pieces move out to form the bridge; after 10 seconds they go back one a second from the tip,
and 7 seconds later the frog looks for players again. Check: in Portabello, with mission 946 done, walk up to the
frog: the tongue bridge comes out and goes back; without the mission it doesn't. Depends on moving platforms
following their paths.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

dScripts/CppScripts.cpp

@@ -323,6 +323,7 @@
 // WBL scripts
 #include "WblGenericZone.h"
 #include "WblStarflies.h"
+#include "WblFrogBridge.h"
 
 // Alpha Scripts
 #include "TriggerGas.h"
@@ -690,6 +691,7 @@ namespace {
 		//WBL
 		{"scripts\\zone\\LUPs\\WBL_generic_zone.lua", []() {return new WblGenericZone();}},
 		{"scripts\\zone\\LUPs\\Portabello Intro\\WBL_Starflies.lua", []() {return new WblStarflies();}},
+		{"scripts\\zone\\LUPs\\Portabello Intro\\WBL_Frog_Bridge.lua", []() {return new WblFrogBridge();}},
 		{"scripts\\zone\\LUPs\\Moonbase Intro\\MOONBASE-INTRO_INTRO_CINEMATIC.lua", []() {return new WblGenericZone();}},
 
 		//Alpha