Major Refactor

[pflooky]

Following major changes to API were made:

• generator removed from field, count and countPerField, generator.options now moved to same level as name options
• Foreign key definition change to source, generate and delete
  • Each part of foreign key contains dataSource, step and fields
• Use field instead of column
  • Shortened version col is also changed to field
• schema removed, fields moves down one level
• Validation changes
  • Updates
    • ...Col -> ...Field (i.e. isEqualCol -> isEqualField)
    • isNot... -> is...(negate) (i.e. isNotNull -> isNull(true))
    • not... -> ...(negate) (i.e. notStartsWith("a") -> startsWith("a", true))
    • equalToOr... -> ...(strictly) (i.e. equalToOrLessThan(10) -> lessThan(10, false))
    • notIn("a", "b") -> in(List("a", "b"), true)
    • upstreamValidation...withValidation(...) -> upstreamValidation...validations(...)
  • New
    • matchesList(regexes, matchAll, negate)
    • hasTypes(types, negate)
    • distinctInSet(set, negate)
    • distinctContainsSet(set, negate)
    • distinctEqual(set, negate)
    • maxBetween(min, max, negate)
    • meanBetween(min, max, negate)
    • medianBetween(min, max, negate)
    • minBetween(min, max, negate)
    • stdDevBetween(min, max, negate)
    • sumBetween(min, max, negate)
    • lengthBetween(min, max, negate)
    • lengthEqual(value, negate)
    • isDecreasing(strictly)
    • isIncreasing(strictly)
    • isJsonParsable(negate)
    • matchJsonSchema(schema, negate)
    • matchDateTimeFormat(format, negate)
    • mostCommonValueInSet(values, negate)
    • uniqueValuesProportionBetween(min, max, negate)
    • quantileValuesBetween(quantileRanges, negate)
• Get schema from Confluent Schema Registry added