Feature: Allow to pass additional options for run('createIndex')

[ovr]

Hey!

It allow us to do (pass advanced options for createIndex)

await db._run('createIndex', 'user', {
        columns: 'login',
        options: {
            name: 'login_uniq',
            unique: true,
            partialFilterExpression: {
                status: {
                    $eq: [
                        'ACTIVE',
                        'BLOCKED'
                    ]
                }
            }
        }
});

Thanks

[gjbaxter]

It'd be nice if we could have enabled the options to be passed to addIndex: function(collectionName, indexName, columns, unique, callback) along side 'unique'.. or.. perhaps an options object replacing unique. But I guess that maybe an interface change?