Deprecated and refactor classifierWithLikes feature

[tisonkun]

It turns out to be useless and buggy. Although I'd like to keep full compatible with os-maven-plugin for a while, we can deprecate it and refactor the code to a separate place for its deprecation.

See also google/osdetector-gradle-plugin#4.

[tisonkun]

This is somehow related to #6 because the likes can be interpreted as "vendor" in the platform triple:

<arch>-<vendor>-<os>[-<toolchain>]

We are currently using <os>-<arch> but perhaps extend the classifier later.