Add Vista v1/v2 Plugin

[fxedel]

The binary .fix or .fix2 files can be downloaded online.

[MikeCodesDotNET]

The Vista uses data from my former employer Carallon Ltd as they subscribed to the Fixture Database service

A requirement for all subscribers is to ensure that any distribution is encrypted before release. This will be the same for the MA2, and ETC consoles and other subscribers.

[fxedel]

Thanks @MikeCodesDotNET, good to know! We've already discovered that there is that Carallon Fixture Database and some programs depend on it, but knowing that they must encrypt fixtures in distributed software is definitely helpful – we won't have to figure out if there is some way to read that format.

@FloEdelmann I think we should keep this issue open for our own information, even if a plugin seems to be impossible.