Added webterminal package

webterminal is a very VERY simple HTML5 Javascript library that let's a nim app do simply text in/out in a tty fashion.

packages.json

@@ -9522,6 +9522,19 @@
     "license": "MIT",
     "web": "https://github.com/leonardoce/nim-clickhouse"
   },
+  {
+    "name": "webterminal",
+    "url": "https://github.com/JohnAD/webterminal",
+    "method": "git",
+    "tags": [
+      "javascript",
+      "terminal",
+      "tty"
+    ],
+    "description": "Very simple browser Javascript TTY web terminal",
+    "license": "MIT",
+    "web": "https://github.com/JohnAD/webterminal"
+  },
   {
     "name": "hpack",
     "url": "https://github.com/nitely/nim-hpack",