SCUMM: Eliminate platform-specific targets
|Reported by:||sev-||Owned by:||sev-|
It would be nice to eliminate platform-specific targets
such as monkey1, zaktowns, game etc and base detection
on MD5 using GF_MULTIPLE_VERSIONS feature.
Also there should be config file upgrade completely
transparent to users. I.e. it will replace legacy
targets when found without any additional
commands/tools. Only thing which we may consider is
printing out some message like 'Upgrading old ScummVM
Ticket imported from: #1091806. Ticket imported from: feature-requests/215.