Bump node to v16 (#1336)

* Pull in jslib

* Bump engines required to node 16 and npm 8

* Bump @types/node to 16

* Modify build.yml to build with node 16 and npm 8

* Update requirements in README.md

* Removed step to install npm8
npm8 is included in node v16

* Pull jslib

package.json

@@ -36,7 +36,7 @@
     "@angular/compiler-cli": "^12.2.13",
     "@ngtools/webpack": "^12.2.13",
     "@types/jquery": "^3.5.5",
-    "@types/node": "^14.17.2",
+    "@types/node": "^16.11.12",
     "@types/webcrypto": "^0.0.28",
     "@types/webpack": "^5.28.0",
     "buffer": "^6.0.3",
@@ -92,7 +92,7 @@
     "whatwg-fetch": "3.6.2"
   },
   "engines": {
-    "node": "~14",
-    "npm": "~7"
+    "node": "~16",
+    "npm": "~8"
   }
-}
+}