Make com.jcabi.matchers.XPathMatcher public

[ilyakharlamov]

If someone wants to match XPath with jcabi-matchers the only way to do that is is via
static XhtmlMatchers.hasXPath()
however, it's static, not OO, not EO.
The jcabi already has a good OO/EO matcher com.jcabi.matchers.XPathMatcher, however, it's package-private and cannot be used by any project.

This issue is regarding making com.jcabi.matchers.XPathMatcher public.

[0crat]

@yegor256/z please, pay attention to this issue

[0crat]

@ilyakharlamov/z this project will fix the problem faster if you donate a few dollars to it; just click here and pay via Stripe, it's very fast, convenient and appreciated; thanks a lot!

[yegor256]

@ilyakharlamov you are welcome to make a pull request

[yegor256]

@ilyakharlamov I made it public in 1.6.0 see 0bea49c

[0crat]

Job gh:jcabi/jcabi-matchers#39 is not assigned, can't get performer