Merge branch 'playerspawn-hook' into 'next'

Add PlayerSpawn hook to Lua

I don't know how I did this but I did. Something about staring at code from 3AM till 5AM...

Here's a test script too:

```Lua
addHook("PlayerSpawn", function(player) player.health = 99 end)

```

See merge request !48

src/g_game.c

@@ -2331,6 +2331,11 @@ void G_SpawnPlayer(INT32 playernum, boolean starpost)
 		}
 	}
 	P_MovePlayerToSpawn(playernum, spawnpoint);
+	
+#ifdef HAVE_BLUA 
+	LUAh_PlayerSpawn(&players[playernum]); // Lua hook for player spawning :)
+#endif
+
 }
 
 mapthing_t *G_FindCTFStart(INT32 playernum)

src/lua_hook.h

@@ -42,6 +42,7 @@ enum hook {
 	hook_LinedefExecute,
 	hook_PlayerMsg,
 	hook_HurtMsg,
+	hook_PlayerSpawn,
 
 	hook_MAX // last hook
 };
@@ -75,5 +76,6 @@ boolean LUAh_BotAI(mobj_t *sonic, mobj_t *tails, ticcmd_t *cmd); // Hook for B_B
 boolean LUAh_LinedefExecute(line_t *line, mobj_t *mo, sector_t *sector); // Hook for linedef executors
 boolean LUAh_PlayerMsg(int source, int target, int flags, char *msg); // Hook for chat messages
 boolean LUAh_HurtMsg(player_t *player, mobj_t *inflictor, mobj_t *source); // Hook for hurt messages
+#define LUAh_PlayerSpawn(player) LUAh_PlayerHook(player, hook_PlayerSpawn) // Hook for G_SpawnPlayer 
 
 #endif

src/lua_hooklib.c

@@ -53,6 +53,7 @@ const char *const hookNames[hook_MAX+1] = {
 	"LinedefExecute",
 	"PlayerMsg",
 	"HurtMsg",
+	"PlayerSpawn",
 	NULL
 };