Introduced some new interfaces.
Implemented the Top class.
Introduced the OrderByColumn class.
Implemented Equals members of OrderByColumn.
Addressed code-analysis errors.
Introduced the OrderByColumns class.
Introduced the Columns property.
Introduced the new constructor of OrderByColumns.
Implemented the GetEnumerator method.
Implemented the None property.
Introduced the SqlQuery class.
Implemented equal members of OrderByColumns.
Implemented equal members of SqlQuery.
Implemented correct GetHashCode of AndPredicate.
Implemented correct GetHashCode method of EqualPredicate.
Implemented correct GetHashCode of InClausePredicate.
Implemented correct GetHashCode of OrderByColumn.
Implemented correct GetHashCode of OrderByColumns.
Implemented correct GetHashCode of Parameter.
Addressed some code-analysis errors.