MetaDIG Quality Engine Suites and Checks v 0.2.0

This release added 20 checks to the FAIR suite and minor updates to KNB, ADC, ESS-DIVE suites:

* knb suite
    * renamed checks
        * check.dataset.title.length -> dataset.title.length
        * check.sampling.description.present -> sampling.description.present
        * check.entity.name.present -> entity.items.present
        * removed check.lookup.group
            * this check did not contribute to the score
* arctic data center suite
    * renamed checks
        * check.dataset.title.length -> dataset.title.length
        * check.sampling.description.present -> sampling.description.present
        * check.entity.name.present -> entity.items..present
* ess-dive
    * renamed checks
        * check.dataset.title.length -> dataset.title.length
    * removed unneeded checks (now part of quality engine, for all suites):
        * check.echo.funder
        * check.echo.rightsHolder
        * check.echo.datasource
        * check.echo.formatId
    * new checks
        *  dataset.keywords.controlled
* FAIR Suite
    * new checks
        *  Findable
            * dataset.naturalLanguageKeywords.present.1
            * dataset.creatorIdentifier.present.1
            * dataset.revisionDate.present.1
            * dataset.publisherIdentifier.present.1
        * Accessible
            * distribution.contact.present.1
            * distribution.contactIdentifier.present.1
            * dataset.serviceLocation.present.1
            * dataset.serviceProvider.present.1
        * Interoperable
            * entity.attributeName.differs.1
            * entity.attributeNames.unique.1
            * entity.attributeDefinition.sufficient.1
            * entity.checksum.present.1
            * coverage.contentType.present.1
            * entity.attributeEnumeratedDomains.present.1
            * dataset.serviceType.present.1
        * Reusable
            * entity.format.nonproprietary.1
            * entity.attributeDomain.present.1
            * entity.attributePrecision.present.1
            * entity.description.present.1
            * entity.qualityDescription.present.1
            * provenance.sourceEntity.present.1