Script should accept parameters for common options

[NunoLinhares]

Currently most parameters are configured through "Quick-Install-Options.ps1". This is fine for people that run the scripts "manually", but for real automation we should be able to pass some (if not all) of these options as parameters in the command line.

Most important options would be:

• SDL Web Installer Path
• License Location(s)

Ideally, all other options (including passwords, database names, etc) will be possibly passed as command-line parameters too.