Support specifying a range of versions

[nickrobinson251]

(Note this may be a duplicate of #843 - cannot quite tell - feel free to close if it is)

Currently, to support multiple "breaking change" versions of a packlage requires writing out the list of all supported versions in the [compat] section of the Project.toml file
e.g. Example = "0.22, 0.23, 0.24, 0.25, 0.26, 0.27"

It would be convenient if this were possible to specify this with a range (or other compact syntax),
e.g. Example = "0.22 - 0.27"

I suspect this is a common enough use-case that it is worth having compact syntax for it.

[StefanKarpinski]

Dup of #843.