Add Elgato Key Light plugin (#79)

* Add Elgato Key Light plugin

* Update ElgatoKeyLight to 0.1.1

Fix: Added missing locales

* Update ElgatoKeyLight to 0.1.2

Fix: Dial changes are reflected immediately

* Update ElgatoKeyLight to 0.1.3

Plugins.json: Use correct order for past versions

Changes:
Fix: Use underscores for plugin id
Style: Updated icon to have a better top/bottom label readability

Author: cozybuild

Plugins.json

@@ -235,5 +235,14 @@
         "commits": {
           "0.9.1": "c451f88f7e919601080a8177ea632143f5301203"
         }
+    },
+    {
+        "url": "https://github.com/cozybuild/StreamControllerElgatoKeyLight",
+        "commits": {
+            "0.1.0": "583d74c6c409d1716966c55b4a6d64589c6caa9c",
+	    "0.1.1": "80aa64e901d966dc8c51d6e669d4bd549a8b92b4",
+	    "0.1.2": "2a823090110aa6993a8b12f85289b0c8b618944c",
+	    "0.1.3": "ad90b5690151ebd7450a0e88b81f9af6a78416ef"
+        }
     }
 ]