Make Standard.Test pending field lazy

[JaroslavTulach]

Pull Request Description

• work on Run Standard.Snowflake in dual JVM mode #14474 shows
• it'd be beneficial to make pending field evaluation lazy
• it causes some issues, so it deserves its own PR

Important Notes

• suite_builder.group ... group_builder-> body is invoked every time even if the group will be pending
  • one needs to be careful to not access non-initialized values
  • however otherwise such a behavior is not incorrect
  • allows to enumerate all tests in all groups, even they are found pending then
  • the change in behavior needs fixes like 5e359c9

Checklist

Please ensure that the following checklist has been satisfied before submitting the PR:

• The documentation has been updated, if necessary.
• All code follows the
  Java,
• Unit tests have been written where possible.

[jdunkerley]

Please do not move the Faker library. It is a useful tool for data creation.

And please restore it's export.

I'm also not convinced by making all the URI generation lazy. If it is necessary ok but feels like adding complexity to key test suites for little benefit.