Display buggregator version in interface

[antonkomarev]

It will be helpful to see what buggregator version is working right now somewhere in the UI.

Related:

• buggregator/server#6

[butschster]

@Kreezag you can find information about API method and response for mock here https://github.com/buggregator/server/pull/65

I've prepared a simple example where a version should be displayed.

[Kreezag]

Fixed and added to the release v0.2.0