Fixes Upper/Lower Casing for include paths (#487)

* Fixing upper/lower case for includes

types.h, zconf.h and zlib.h were renamed so that global includes like Types.h
are not used.

lua/Lua Interpreter.h

@@ -7,7 +7,7 @@ extern "C" {
 #include "lualib.h"
 }
 
-#include "Types.h"
+#include "types.h"
 
 typedef struct {
 	STR8 name;

lua/lua.cpp

@@ -2,7 +2,7 @@
 #include <string.h>
 #include <iostream>
 #include "Lua Interpreter.h"
-#include <Windows.h>
+#include <windows.h>
 #include "MemMan.h"
 
 lua_State *L;

lua/lua_class_interface.cpp

@@ -1,6 +1,6 @@
 #include "lua_class_interface.h"
 
-#include <Debug.h>
+#include <DEBUG.H>
 
 #define ARRAY_INDEX " idx"	// The space is intentional to make this an out-of-band field
 

lua/lua_state.cpp

@@ -1,5 +1,5 @@
 #include "lua_state.h"
-#include <Debug.h>
+#include <DEBUG.H>
 #include "sgp_logger.h"
 
 #include <vfs/Core/vfs_string.h>

lua/lwstring.cpp

@@ -1,5 +1,5 @@
 #include "builddefines.h"
-#include <Windows.h>
+#include <windows.h>
 
 #include "MemMan.h"
 

lua/lwstring.h

@@ -15,7 +15,7 @@ extern "C" {
 #include <lualib.h>
 }
 
-#include "Types.h"
+#include "types.h"
 
 typedef struct {
 	int len;