Add some presets.

presets/CVMix/Unity mix.vcvm

@@ -0,0 +1,19 @@
+{
+  "plugin": "Fundamental",
+  "model": "CVMix",
+  "version": "2.2.0",
+  "params": [
+    {
+      "value": 1.0,
+      "id": 0
+    },
+    {
+      "value": 1.0,
+      "id": 1
+    },
+    {
+      "value": 1.0,
+      "id": 2
+    }
+  ]
+}

presets/Mutes/Mute all.vcvm

@@ -0,0 +1,47 @@
+{
+  "plugin": "Fundamental",
+  "model": "Mutes",
+  "version": "2.2.0",
+  "params": [
+    {
+      "value": 1.0,
+      "id": 0
+    },
+    {
+      "value": 1.0,
+      "id": 1
+    },
+    {
+      "value": 1.0,
+      "id": 2
+    },
+    {
+      "value": 1.0,
+      "id": 3
+    },
+    {
+      "value": 1.0,
+      "id": 4
+    },
+    {
+      "value": 1.0,
+      "id": 5
+    },
+    {
+      "value": 1.0,
+      "id": 6
+    },
+    {
+      "value": 1.0,
+      "id": 7
+    },
+    {
+      "value": 1.0,
+      "id": 8
+    },
+    {
+      "value": 1.0,
+      "id": 9
+    }
+  ]
+}