Пакет sisyphus_check: Информация

Cherry-picked:
[0.8.50-alt1]
- 210-check-kernel: more info in a message
  (about multiple kernel-image Requires).
[0.8.49-alt1]
- 210-check-kernel:
  + fixed splitting of $kernel_require in the presence of disttag;
  + for standalone kmodules, accept Requires on kernel-image with disttags;
  + added warning to advise to use %requires_kimage.

Cherry-picked (to make more "permissive" w.r.t. disttag in 210-check-kernel):
[0.8.47-alt1]
- 090-check-nvr: check disttag.
- 210-check-kernel (check_kmodule): strip disttag from kernel_release.
[0.8.46-alt1]
- 090-check-nvr: make version and release check more strict

- 090-check-nvr (check_nvr):
  + allowed single symbol package names (closes: #28834, #31481).