Configure each chart/table to show/hide its own drop-down selectors

[edwinmp]

Currently, we're only supporting global selectors, specifically for sub-counties and levels (education i.e primary, secondary e.t.c). We'd like to be able to have individual selectors on a chart/table that aren't tied to the global context.

Requirements

• Remove the level dropdown from the global selector
• Add state-configurable support for a chart or table drop-down