add manifest file so that visual styles are applied to xtray (XhmikosR)

src/fe-gtk/xchat.exe.manifest

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <assemblyIdentity
+    name="XChat"
+    processorArchitecture="*"
+    version="1.0.0.0"
+    type="win32"
+  />
+  <description>XChat IRC client</description>
+  <dependency>
+    <dependentAssembly>
+      <assemblyIdentity
+        type="win32"
+        name="Microsoft.Windows.Common-Controls"
+        version="6.0.0.0"
+        processorArchitecture="*"
+        publicKeyToken="6595b64144ccf1df"
+        language="*"
+      />
+    </dependentAssembly>
+  </dependency>
+</assembly>

src/fe-gtk/xchat.rc

@@ -1,6 +1,8 @@
 #include <winver.h>
 #include "../../config.h"
 
+1 24 "xchat.exe.manifest"
+
 XC_ICON ICON "../../xchat.ico" 
 
 VS_VERSION_INFO VERSIONINFO