fix: problems with picking up grenades on the ground (ref #529)

fix: picking up m249 ammo from the ground
fix: make bots respect camping_time_min/max when guarding bomb/hostages
nav: make normal and rusher bots less defensive on hostage maps (ref #528)

inc/hooks.h

@@ -104,6 +104,8 @@ public:
       return m_sendToDetour.restore ();
    }
 
+public:
+   static int32_t CR_STDCALL sendTo (int socket, const void *message, size_t length, int flags, const struct sockaddr *dest, int destLength);
 };
 
 // used for transit calls between game dll and engine without all needed functions on bot side