Add MHonArc detection

This can be tested on [this](https://www.spinics.net/lists/git/msg296649.html) page

src/apps.json

@@ -4685,6 +4685,14 @@
 			},
 			"website": "www.eidosmedia.com/solutions"
 		},
+		"MHonArc": {
+			"cats": [
+				50
+			],
+			"html": "<!-- MHonArc v([0-9.]+) -->\\;version:\\1",
+			"icon": "mhonarc.png",
+			"website": "www.mhonarc.at"
+		},
 		"Microsoft ASP.NET": {
 			"cats": [
 				18