Use local-variables to define categories and traits or customize test's name

[Seddryck]

It would be interesting to be able to define categories or traits based on the actual value of the local-variable. As local-variables are evaluated at load-time, there is no blocking point to implement this.

<test name="~My super test for {@time:MMM}">
  <instance-settling>
    <local-variable name="time">…</local-variable>
    <categorie>@time</categorie>
    <categorie>~{@time:MMM}</categorie>
    <trait name="year">~{@time:YYYY}</trait>
  </instance-settling>
  ...
</test>

[Seddryck]

Beta available at https://ci.appveyor.com/project/Seddryck/nbi/builds/21422019/artifacts (1.20.0-beta.56)