Add Packetry to projects.json

Author: martinling

_data/projects.json

@@ -161,6 +161,11 @@
     "name": "noaa-apt",
     "url": "https://github.com/martinber/noaa-apt"
   },
+  {
+    "name": "Packetry",
+    "url": "https://github.com/greatscottgadgets/packetry",
+    "description": "A fast, intuitive USB 2.0 protocol analysis application"
+  },
   {
     "name": "pcatk",
     "url": "https://github.com/pwil3058/pcatk"