Set missing remote-ic in metadata.xml

Signed-off-by: Justin Lecher <jlec@gentoo.org>

app-backup/backup-manager/metadata.xml

@@ -10,4 +10,7 @@
 	<use>
 		<flag name="s3">Support for backing up to the Amazon S3 system</flag>
 	</use>
+	<upstream>
+		<remote-id type="github">sukria/Backup-Manager</remote-id>
+	</upstream>
 </pkgmetadata>

app-benchmarks/i7z/metadata.xml

@@ -6,5 +6,6 @@
 	</maintainer>
 	<upstream>
 		<remote-id type="google-code">i7z</remote-id>
+		<remote-id type="github">ajaiantilal/i7z</remote-id>
 	</upstream>
 </pkgmetadata>

media-libs/opencv/metadata.xml

@@ -26,5 +26,6 @@ Face Recognition; Gesture Recognition; Motion Tracking, Ego Motion, Motion Under
 	</use>
 	<upstream>
 		<remote-id type="sourceforge">opencvlibrary</remote-id>
+		<remote-id type="github">Itseez/opencv_contrib</remote-id>
 	</upstream>
 </pkgmetadata>

net-analyzer/nagstamon/metadata.xml

@@ -8,5 +8,6 @@
   </maintainer>
   <upstream>
     <remote-id type="sourceforge">nagstamon</remote-id>
+    <remote-id type="github">HenriWahl/nagstamon</remote-id>
   </upstream>
 </pkgmetadata>