Add forklift icon (#2833)

# Pull Request

## 🤨 Rationale

Resolves #2831 

## 👩‍💻 Implementation

Followed standard new icon process. [FontAwesome also uses the name
"forklift"](https://fontawesome.com/search?q=forklift) so I went with
that.

## 🧪 Testing

Storybook inspection

## ✅ Checklist

<!--- Review the list and put an x in the boxes that apply or ~~strike
through~~ around items that don't (along with an explanation). -->

- [x] I have updated the project documentation to reflect my changes or
determined no changes are needed.

Author: jattasNI

change/@ni-nimble-tokens-1479eba6-7430-4d79-88f1-3743f3075587.json

@@ -0,0 +1,7 @@
+{
+  "type": "minor",
+  "comment": "Add forklift icon",
+  "packageName": "@ni/nimble-tokens",
+  "email": "jattasNI@users.noreply.github.com",
+  "dependentChangeType": "minor"
+}

packages/nimble-components/src/icon-svg/tests/icon-metadata.ts

@@ -370,6 +370,9 @@ export const iconMetadata: {
     IconFolderOpen: {
         tags: ['browse']
     },
+    IconForklift: {
+        tags: ['transport', 'transit', 'transfer', 'convey', 'haul', 'lift', 'move']
+    },
     IconForwardSlash: {
         tags: []
     },