Add publishAllFields option

Hi, I understand that there is the extraFileds: option do define other fields.
But it would be great to have another option to simply tell server-side to publish all (other) fields by default which are not defined in data columns. Especially when having a lot of fields defined in SimpleSchema, Collection2 with quick forms causes a lot of manual work to define fields.

If there is a hint on how to simplify the manual work, I would appreciate this feedback.

Thanks.


Disabling some columns should still allow to edit other fields. But the publishing reduces the object for fields defined (see attached image of GreatAlbums example)

```

TabularTables.AlbumsList = new Tabular.Table({
name: "Great Albums List",
collection: Albums,
columns: [
{data: "artNr", title: "Art.Nr", class: "col-md-1"},
{data: "artistName", title: "Artist", class: "col-md-3"},
{data: "albumTitle", title: "Title", class: "col-md-4"},
{data: "inStock", title: "In stock", class: "col-md-1"},
{data: "backOrdersPossible", title: "Backorders Possible", class: "col-md-1"},
//{data: "price", title: "Price", class: "col-md-1"},
{
tmpl: Meteor.isClient && Template.AlbumActionBtns, class: "col-md-1"
}

]
});

```

No file or test is named. Start by tracing the Tabular.Table configuration and its server-side publication behavior, using the AlbumsList example as the reproduction case; done means an option can publish fields outside the listed data columns while omitted columns remain disabled in the table.

Written by the indexing model from the issue text.