Consider patch releases to include hot bug fixes

[mnovak]

In case that XTF must be patched quickly (as for #409) to handle changes in new OCP 4.x releases. We might need to create patch release of latest XTF release. The reason why not to create new tag from master is that contains number of other features/commits which might cause unwated regressions and cause major delays.

Suggestion is to take latest tagged release, for example 0.21 and introduce micro versioning like 0.21.1. This would contain only hot bug fixes. This should speed up hot bug fix processing by consuming projects.

Creating of such release would be in competency of any XTF admins.

[mnovak]

@Crumby @dsimansk @llowinge what do you think of above proposal?

[llowinge]

I don't use XTF anymore, i think @fmongiar can speak. But i believe it is good approach.

[fmongiar]

I agree