[Autoflow] Bring in example taxonomy

Bring in example taxonomy and gitignore changes from
topic branch for WTD-614 into open-source-friendly
branch, in preparation to merge.

.gitignore

@@ -4,6 +4,7 @@
 *.tgz
 *.DS_Store
 *.idea
+*.sass-cache
 
 # External dependencies
 

example/taxonomy/bundle.json

@@ -0,0 +1,29 @@
+{
+    "name": "Example taxonomy",
+    "description": "Example illustrating the addition of a static top-level hierarchy",
+    "extensions": {
+        "roots": [
+            {
+                "id": "exampleTaxonomy",
+                "model": {
+                    "type": "folder",
+                    "name": "Stub Subsystems",
+                    "composition": [
+                        "examplePacket0",
+                        "examplePacket1",
+                        "examplePacket2"
+                    ]
+                }
+            }
+        ],
+        "components": [
+            {
+                "provides": "modelService",
+                "type": "provider",
+                "implementation": "ExampleTaxonomyModelProvider.js",
+                "depends": [ "$q" ]
+            }
+        ]
+
+    }
+}

example/taxonomy/src/ExampleTaxonomyModelProvider.js

@@ -0,0 +1,48 @@
+/*global define*/
+
+define(
+    [],
+    function () {
+        "use strict";
+
+        function ExampleTaxonomyModelProvider($q) {
+            var models = {},
+                packetId,
+                telemetryId,
+                i,
+                j;
+
+            // Add some "subsystems"
+            for (i = 0; i < 3; i += 1) {
+                packetId = "examplePacket" + i;
+
+                models[packetId] = {
+                    name: "Stub Subsystem " + (i + 1),
+                    type: "telemetry.panel",
+                    composition: []
+                };
+
+                // Add some "telemetry points"
+                for (j = 0; j < 100 * (i + 1); j += 1) {
+                    telemetryId = "exampleTelemetry" + j;
+                    models[telemetryId] = {
+                        name: "SWG" + i + "." + j,
+                        type: "generator",
+                        telemetry: {
+                            period: 10 + i + j
+                        }
+                    };
+                    models[packetId].composition.push(telemetryId);
+                }
+            }
+
+            return {
+                getModels: function () {
+                    return $q.when(models);
+                }
+            };
+        }
+
+        return ExampleTaxonomyModelProvider;
+    }
+);