[Loginserver] Automatifc Opcode File Creation (#4521)

* Loginserver will auto create the opcodes file if it doesn't exist on load.

* Use path manager in login opcodes.

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Co-authored-by: KimLS <KimLS@peqtgc.com>

common/eqemu_config.h

@@ -95,6 +95,7 @@ class EQEmuConfig
 		std::string PluginDir;
 		std::string LuaModuleDir;
 		std::string PatchDir;
+		std::string OpcodeDir;
 		std::string SharedMemDir;
 		std::string LogDir;