Install a remote root certificate in ms windows using powershell
$FLAGDOWNLOAD = 0
$FLAGINSTALL = 0
$URL_PATH = NETWORK path to download certificate e.g. "http://192.168.1.2:8000/ca.crt"
$CERT_LOCATION = Where to download certificate e.g. "$env:public\firewallssl.cer"
$DONOTDELETE_FILE = flag to check if certificate is correctly installed - e.g. "DONOTDELETE_CERT_OK.txt"
$FLAGLOCATION = flag location - e.g. $env:public
$FLAGNAME = flag name "DONOTDELETE_CERT_OK.txt"