Add sdl/weth sushi pool contract to app

[hammeiam]

• adds the sdl/weth sushi contract https://analytics.sushi.com/pairs/0x0c6f06b32e6ae0c110861b8607e67da594781961
• adds a fetcher to get basic information about the pool and store in redux

[codecov[bot]]

Codecov Report

Merging #1099 (fcd46c1) into master (a24169f) will decrease coverage by 0.01%. The diff coverage is 6.89%.

@@            Coverage Diff             @@
##           master    #1099      +/-   ##
==========================================
- Coverage   10.78%   10.76%   -0.02%     
==========================================
  Files         146      147       +1     
  Lines        5240     5267      +27     
  Branches     1655     1661       +6     
==========================================
+ Hits          565      567       +2     
- Misses       4675     4700      +25     

Impacted Files	Coverage Δ
src/pages/App.tsx	0.00% <0.00%> (ø)
src/providers/TokensProvider.tsx	1.36% <0.00%> (-0.08%)	:arrow_down:
src/state/application.ts	0.00% <0.00%> (ø)
src/state/index.ts	0.00% <ø> (ø)
src/utils/updateSdlWethSushiInfo.ts	0.00% <0.00%> (ø)
src/hooks/useContract.ts	3.78% <16.66%> (+0.43%)	:arrow_up:
src/constants/index.ts	94.71% <100.00%> (+0.01%)	:arrow_up:

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update a24169f...fcd46c1. Read the comment docs.