VoiceAttack: Allow users to define the port and host

[jfgilliam]

Change all references of localhost to
{TXT:SRA_HOST:localhost}:{TXT:SRA_Port:80}
Create a Startup command and make it run by default when the profile is loaded.
If you need to change the defaults, edit this command and change them.
Submitted by @samkatakouzinosracing

[jfgilliam]

I put a version with this fixed in the Files section of the SIMRacingAppsBETA group on Facebook.