Add script to update all web dependencies

Author: GrahamTheCoder

Update-NpmPackages.ps1

@@ -0,0 +1,9 @@
+$null = & npm install -g npm-check-updates@latest
+Push-Location './Web/ClientApp'
+try {
+    & ncu -u
+    & npm install --audit false
+    & npm audit --production
+} finally {
+    Pop-Location
+}