ODL 8.0.0-rc.1

What's Changed

• Fix async wrapper over sync API in reading nested property info (#2995) by @gathogojr in #2998
• Remove Hardcoded 'Fred' from EdmModel_Validator_Semantic_TypeMismatchRelationshipConstraint Error Message by @WanjohiSammy in #3000
• E2E test framework by @ElizabethOkerio in #3002
• Update benchmarks for ODL 8 by @habbes in #2996
• Set ODataUtf8JsonWriter as default JsonWriter by @habbes in #2980
• Change ODataResource.Properties property type to IEnumerable by @gathogojr in #2916
• Update version to 8.0.0-rc.1 release candidate by @habbes in #3008
  Full Changelog: 8.0.0-preview.3...8.0.0-rc.1