Proposal for versioning the ilab config file

[alimaredia]

Related to instructlab/instructlab/issues/1725

[bjhargrave]

Versioning implies there is a schema for each version to support some compatibility across versions. Otherwise the version value is just an opaque identity that the cli either understands or does not.

[bjhargrave]

Suggested change

	The value of `version` should start at `1.0`.
	The value of `version` should start at `1`.

I would just use a simple integer unless you plan to handle semantic versioning. Like where the cli handles all 1.x variants but not 2.x.

[hickeyma]

Thanks for pushing the proposal @alimaredia.

Open question about versioning configuration. Should configuration be tied to a major release rather than versioning it? In other words, the configuration needs to be backwards compatible within a major release version but breaking changes can apply on the next major version.

In that case, we can change configuration that breaks backwards compatibility up until InstructLab 1.0.0 release.