Extension: add FWD Voice AI Kit (#7068)

Co-authored-by: Abhijith Chatra <abchatra@microsoft.com>

Author: martinwork

docs/extensions/extension-gallery.md

@@ -556,6 +556,10 @@ Many extensions are available to work with interface kits, add-on hardware, or o
 
 ```codecard
 [{
+  "name": "FWD Voice AI Kit",
+  "url":"/pkg/Forward-Education/pxt-ai-voice",
+  "cardType": "package"
+}, {
   "name": "enorasisCore",
   "url":"/pkg/skinformatics/enorasisCore-makecode",
   "cardType": "package"

targetconfig.json

@@ -449,6 +449,7 @@
             "bsiever/pxt-sen66": { "tags": [ "Science" ] },
             "skinformatics/enorasiscore-makecode": { "tags": [ "Science" ] },
             "pasalt/pxt-neopixel-matrix-extension": { "tags": [ "Lights and Display" ] },
+            "forward-education/pxt-ai-voice": { "tags": [ "Science" ] },
             "elecfreaks/pxt-pu-robot": { "tags": [ "Robotics" ] },
             "microsoft/pxt-simx-sample": {
                 "simx": {