[Map] Added summary information, SDG layers, refactor and data cleaner

[edil-it-them]

It is a major update to the map visualization.

• Added a summary information which is visible when nothing is selected.

• Added an ability to select one of 17 SDGs from the dropdown and see how many DPGs are related to it. You can see it by colors on the map(from light blue to blue depending on how many DPGs are deployed) and on the menu by barcharts with country names.

• You can also see and select DPGs that are related to current SDG

• You can use Pathfinder, Deployment and Development filters with SDG layer

• Added rename country data cleaner to index.js file until this PR is merged

• Refactored code so it's much easier to navigate and make changes.

I used HEX.83BEF6 color from DPGA guidelines for countries on the map and barchart on the menu. @SarahWat please let me know if colors and text on screenshots are good.

Kindly review @lacabra cc: @nathanfletcher

Closes #85

[edil-it-them]

New 🔥 update: Now barcharts in menu for SDG and Country visualizations are interactive 🚀

[SarahWat]

The colours & text looks good to me, thanks @Rolikasi !