datum: Add support for bundle.tracked_row_add in AQ.Relation.insert()

[erichanson]

When inserting a new row in the database, a common pattern is to also want to add that row to the appropriate bundle. Add an option on datum insert for also tracking the row in the specified bundle.

[erichanson]

Alternately, create a bundle manip library that builds on top of datum, for doing client side bundle operations. Currently, for example, to call bundle.tracked_row_add(bundle_name text, schema_name text, relation_name text, pk_column_name text, pk_value text) from datum looks like this rather verbose call to AQ.Schema.function():

        endpoint.schema('bundle').function('tracked_row_add', [
            bundle.get('name'),
            'documentation',
            'bundle_doc',
            'id',
            bundle_doc.get('id')
        ]).then(function(result) {
            // ...
        });

It should be possible do something higher-level, that just does the above under the hood, like:

AQ.bundle.tracked_row_add(
    bundle.get('name'),
    'documentation',
    'bundle_doc',
    'id',
    bundle_doc.get('id')
).then(function(result) {
    // ...
}).catch(function(err) {
    // ...
});

So maybe create a bundle.js library? It would sure be nice if this functionality was just mixed into the datum library though, with something like:

    endpoint.schema('documentation').table('bundle_doc').insert({
        bundle_id: bundle.get('id'),
        content: '# '+bundle.get('name')+"\n"
    }, {
        // insert options here, e.g.
        tracked_row_add: 'org.aquameta.core.ide'
    }).then(function(bundle_doc) {

It does conflate separations of concerns between endpoint/datum and bundle though. Hmm.

[erichanson]

This issue is the tip of the iceberg. Endpoint needs a whole new bag, ala #228.