[Feature]: Support de-selecting a stream by default

[edgarrmondragon]

Feature scope

Taps (catalog, state, stream maps, etc.)

Description

Tap developers may want to disable certain streams in their taps for a few reasons:

• The stream requires higher access credentials than the rest
• The stream requires a different payment tier in the source system
• The stream has a large volume of data and not all users may be interested in it by default

The discovered catalog would flag the stream with "selected_by_default": false. This means that with no catalog file, the stream selection will be resolved to False.

End users could still toggle the stream selection as normal by passing a catalog file.

Related discussion:

• Letting tap developers unselect certain streams in the default catalog #1652

[edgarrmondragon]

Note that even with a discovered catalog that declares "selected-by-default": false or even "selected": false, Meltano will still select all streams by default.