A lot of existing packages do not conform to SemVer, yet, they should be allowed
in the Conan package registry as-is. To achieve this, remove the SemVer check
from `NewRecipeReference`, and replace it with a simple empty string check.
A unit test with a non-semver version is also included.
Fixes#20405
An error occurred
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Signed-off-by: Gergely Nagy <me@gergo.csillger.hu>
Co-authored-by: KN4CK3R <admin@oldschoolhack.me>