Feature: Tab-Filter Module

[jonthegeek]

Feature Details

We have up to three filters in gsmApp: Metric, Site, and Participant. Which ones display depends on the currently selected tab.

Example Code

Possible Implementation

This module will have multiple server functions:

• One takes something like a vector of filters to show, and sets the show/hide status appropriately.
• Another one or set of ones will return the inputs as reactives (for use in other modules).

Additional Comments

This is very closely related to the tabset module, so I'm torn about whether they're somehow a single module (or at least share a namespace). Will sort things out more during implementation.

[jonthegeek]

This is likely to become less weird in the updated version of the app, depending how #215 turns out.

[jonthegeek]

We've done enough of this for now.