Add *.props as a recognized file extension for XML

AArnott · web-flow · commit 9dacd34cb525 · 2017-07-03T05:35:34.000-07:00
Several MSBuild file extensions where already there including `*.targets`.
diff --git a/extensions/xml/package.json b/extensions/xml/package.json
@@ -34,6 +34,7 @@
 				".opml",
 				".owl",
 				".proj",
+        ".props",
 				".pt",
 				".pubxml",
 				".pubxml.user",
