## Environment
**Liquibase Version**: 4.3.1

**Liquibase Integration & Version**: n/a

**Liquibase Extension(s) & Version**: n/a 

**Database Vendor & Version**: Oracle and MSSQL

**Operating System Type & Version**: n/a

## Description
If you have an `addForeignKeyConstraint` change with attribute `deleteCascade="true"` it is simply ignored.
This code: https://github.com/liquibase/liquibase/blob/43ed0e54adedc5f12c7933b998550e777d9b683d/liquibase-core/src/main/java/liquibase/change/core/AddForeignKeyConstraintChange.java#L195-L199 suggests that it should be automatically translated to `onDelete="CASCADE"` which would make sense, but it is not.
It currently is simply ignored.


} else {
            throw new UnexpectedLiquibaseException("Unknown onDelete action: "+rule);
        }
    }
    public void setOnUpdate(ForeignKeyConstraintType rule) {
        if (rule == null) {
            
        } else if (rule == ForeignKeyConstraintType.importedKeyCascade) {
            setOnUpdate("CASCADE");
        } else  if (rule == ForeignKeyConstraintType.importedKeySetNull) {
            setOnUpdate("SET NULL");
        } else if (rule == ForeignKeyConstraintType.importedKeySetDefault) {
            setOnUpdate("SET DEFAULT");
        } else if (rule == ForeignKeyConstraintType.importedKeyRestrict) {
            setOnUpdate("RESTRICT");
        } else if (rule == ForeignKeyConstraintType.importedKeyNoAction) {
            setOnUpdate("NO ACTION");
        } else {
            throw new UnexpectedLiquibaseException("Unknown onUpdate action: "+onUpdate);
        }
    }
    @Override
    public SqlStatement[] generateStatements(Database database) {
        boolean deferrable = false;
        if (getDeferrable() != null) {
            deferrable = getDeferrable();
        }
        boolean initiallyDeferred = false;
        if (getInitiallyDeferred() != null) {
            initiallyDeferred = getInitiallyDeferred();