feat : Add T4 engine for Code - generation.

Author: dotchris90

GenerateCode.ps1

@@ -0,0 +1,13 @@
+# first check if T4 engine is installed
+if ( -not ( Get-Command t4 -errorAction SilentlyContinue))
+{
+    Write-Host "T4 tool was not found - will be installed."
+    dotnet tool install -g dotnet-t4
+    Write-Host "T4 has been installed."
+}
+else
+{
+    Write-Host "T4 tool is already installed."
+}
+
+Write-Host ("location of T4 tool is : " + (Get-Command t4).Path)