fix Windows build: forward-declare CBasePlayer, raw regex string

MSVC processes imovehelper.h before CBasePlayer is declared by the
SDK headers. Added class CBasePlayer forward declaration in
snipe_task.cpp to fix error C2061. Also fixed Python SyntaxWarning
in AMBuildScript by using a raw string for the regex pattern.

Author: pongo1231

AMBuildScript

@@ -132,7 +132,7 @@ class MMSConfig(object):
     import re
     with open(os.path.join(builder.sourcePath, 'product.version'), 'r') as fp:
       productContents = fp.read()
-    m = re.match('(\d+)\.(\d+)\.(\d+).*', productContents)
+    m = re.match(r'(\d+)\.(\d+)\.(\d+).*', productContents)
     if m == None:
       self.productVersion = '1.0.0'
     else:

rcbot2/botutil/base_task.h

@@ -3,6 +3,8 @@
 #include "bot.h"
 #include "bot_const.h"
 
+class CBasePlayer;
+
 class CBotSchedule;
 
 class IBotTaskInterrupt

rcbot2/botutil/hl2dm/gravgun_pickup_task.cpp

@@ -1,3 +1,4 @@
+class CBasePlayer;
 #include "gravgun_pickup_task.h"
 
 #include "bot_getprop.h"

rcbot2/botutil/hl2dm/snipe_task.cpp

@@ -1,3 +1,4 @@
+class CBasePlayer;
 #include "snipe_task.h"
 
 #include "bot_getprop.h"

rcbot2/botutil/hl2dm/use_button_task.cpp

@@ -1,3 +1,4 @@
+class CBasePlayer;
 #include "use_button_task.h"
 
 #include "bot_globals.h"

rcbot2/botutil/hl2dm/use_charger_task.cpp

@@ -1,3 +1,4 @@
+class CBasePlayer;
 #include "use_charger_task.h"
 
 #include "bot_getprop.h"