/// Get the forest level from "msDS-Behavior-Version" LDAP attribut.
pub fn get_forest_level(level: String) -> String
{
match level.as_str() {
"7" => { return "2016".to_string(); },
"6" => { return "2012 R2".to_string(); },
"5" => { return "2012".to_string(); },
"4" => { return "2008 R2".to_string(); },
"3" => { return "2008".to_string(); },
"2" => { return "2003".to_string(); },
"1" => { return "2003 Interim".to_string(); },
"0" => { return "2000 Mixed/Native".to_string(); },
_ => { return "Unknown".to_string(); },
}
}