bootstrap router

[shunjizhan]

Change

Added endpoints for bootstrap router.

Bootstrap router is a little different than other routers that it won't destroy itself after routing for bootstrap, and it will only perform gas drop for the first route (AcalaNetwork/asset-router#62).

Tests

Added tests to make sure routing works as expected, especially that the behavior is different for the first and second route.

currently bootstrapping has not opened yet on mainnet, so in the test setup we need to manually do the necessary preparation and open it.

[codecov]

Codecov Report

Attention: Patch coverage is 95.08197% with 3 lines in your changes missing coverage. Please review.

Project coverage is 82.25%. Comparing base (0a51269) to head (bfb295c).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
src/api/swapAndRoute.ts	33.33%	2 Missing ⚠️
src/api/dropAndBootstrap.ts	97.56%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #76      +/-   ##
==========================================
- Coverage   84.97%   82.25%   -2.73%     
==========================================
  Files          27       28       +1     
  Lines         619      665      +46     
  Branches       69       77       +8     
==========================================
+ Hits          526      547      +21     
- Misses         91       96       +5     
- Partials        2       22      +20     

Files with missing lines	Coverage Δ
src/api/index.ts	100.00% <100.00%> (ø)
src/consts.ts	91.17% <100.00%> (-8.83%)	⬇️
src/middlewares/router.ts	100.00% <100.00%> (ø)
src/utils/configureEnv.ts	92.30% <ø> (-7.70%)	⬇️
src/utils/index.ts	100.00% <100.00%> (ø)
src/utils/validate.ts	95.65% <100.00%> (-4.35%)	⬇️
src/api/dropAndBootstrap.ts	97.56% <97.56%> (ø)
src/api/swapAndRoute.ts	27.77% <33.33%> (-5.56%)	⬇️

... and 9 files with indirect coverage changes