Fix more windows.h/winsock.h/winsock2.h issues

We want to use winsock2.h rather than winsock.h. This was mostly enforced
from the global_defines.h file, but I wanted to make it consistent.

Most of these includes can be removed since they're included via
global_defines.h, but someone on windows should clean that up

common/base_packet.h

@@ -22,10 +22,10 @@
 #include <stdio.h>
 #include <string.h>
 
-#ifdef WIN32
+#ifdef _WINDOWS
 	#include <time.h>
-	#include <windows.h>
 	#include <winsock2.h>
+	#include <windows.h>
 #else
 	#include <sys/time.h>
 	#include <netinet/in.h>

common/dbcore.h

@@ -2,7 +2,7 @@
 #define DBCORE_H
 
 #ifdef _WINDOWS
-	#include <winsock.h>
+	#include <winsock2.h>
 	#include <windows.h>
 #endif
 

common/eq_stream_factory.cpp

@@ -3,7 +3,7 @@
 #include "eq_stream_factory.h"
 
 #ifdef _WINDOWS
-	#include <winsock.h>
+	#include <winsock2.h>
 	#include <process.h>
 	#include <io.h>
 	#include <stdio.h>

common/mutex.h

@@ -18,7 +18,7 @@
 #ifndef MYMUTEX_H
 #define MYMUTEX_H
 #ifdef _WINDOWS
-	#include <winsock.h>
+	#include <winsock2.h>
 	#include <windows.h>
 #else
 	#include <pthread.h>

common/mysql_request_result.h

@@ -2,7 +2,7 @@
 #define MYSQL_REQUEST_RESULT_H
 
 #ifdef _WINDOWS
-	#include <winsock.h>
+	#include <winsock2.h>
 	#include <windows.h>
 #endif
 

common/mysql_request_row.h

@@ -2,7 +2,7 @@
 #define MYSQL_REQUEST_ROW_H
 
 #ifdef _WINDOWS
-	#include <winsock.h>
+	#include <winsock2.h>
 	#include <windows.h>
 #endif
 

common/ptimer.cpp

@@ -24,8 +24,8 @@
 #include "string_util.h"
 
 #ifdef _WINDOWS
+	#include <winsock2.h>
 	#include <windows.h>
-	#include <winsock.h>
 	int gettimeofday (timeval *tp, ...);
 #else
 	#include <sys/time.h>