PowerShell: Get-DCDiag script for getting domain controller diagnostic information

I wrote a script that will run DCDiag on domain controllers that you specify or all DCs in your environment. 

I will be working to improve the script as much as I can. This was a way for me to learn how advanced parameters and object building works in PowerShell.

The "all" and "full" options currently return an object that you can manipulate. The other options will do that soon once I update the script and test it more.

You can run this as a script or as a function within a script depending on your needs. Let me know if you have any feedback!