Added Unfiltered Volume 1 (#139)

plugins/UnfilteredVolume1.json

@@ -0,0 +1,9 @@
+{
+  "slug": "UnfilteredVolume1",
+  "name": "Unfiltered Volume 1",
+  "author": "Unfiltered Audio",
+  "license": "proprietary",
+  "version": "0.5.0",
+  "manual": "https://www.unfilteredaudio.com/pages/vcv-manuals",
+  "productId": "679766392875"
+}