[C2] [L2Server/L2NPC] Add direction support to CreateOnePrivateEx

[Master Toma]

In C2 it is

int CreateOnePrivateEx(int privateClassId, const wchar_t* ai, int privateWeightPoint, int respawnTime, int x, int y, int z, int ai param1, int ai param2, int ai param3)

Example:

CreateOnePrivateEx(1031126, "blacksmith_of_mammon", 0, 0, 42825, -41337, -2184, 37972, 0, 0, 0);