Acceptance testing for JSON-Schema based validators

Changes for 1.022 - 2024-03-09T22:26:06Z

• handle out-of-range numeric test data by decoding to Math::BigFloat/Math::BigInt objects
• remove use of JSON::MaybeXS, to avoid potential use of JSON::XS; now we use Cpanel::JSON::XS or JSON::PP directly, using the same environment variables as in Mojo::JSON for customization.
• explicit mention added to LICENSE prohibiting the alteration of the test data packaged with this distribution
• updated test suite: github.com/json-schema-org/JSO…