ForkCMS -- Add detection for via meta tag

src/apps.json

@@ -2577,6 +2577,17 @@
 			"icon": "Font Awesome.png",
 			"website": "http://fontawesome.io"
 		},
+		"Fork CMS": {
+			"cats": [
+				"1"
+			],
+			"icon": "ForkCMS.png",
+			"implies": "Symfony",
+			"meta": {
+				"generator": "^Fork CMS$"
+			},
+			"website": "http://www.fork-cms.com/"
+		},
 		"Fortune3": {
 			"cats": [
 				"6"
@@ -10162,4 +10173,4 @@
 			"priority": "9"
 		}
 	}
-}
+}