BalancerBridge (#2613)

* Add BalancerBridge and Sampler functions

* Update sampler artifacts/wrappers

* Add Balancer support to AssetSwapper + related refactoring

* Make use of GraphQL instead of sampler

* "fix" build and add mainnet BalancerBridge tests

* address some comments

* add balancer cache and fix DexSampler tests

* lint

* wip: tests for balancer sampler ops

* Fix market operation utils test

* balancer unit tests

* Return a buy quote of 0 if the buy amount exceeds the Balancer pool's balance

* Dynamic fee estimation

* Update contract addresses, export BalancerBridge wrapper

* Update changelogs

* Fix bugs discovered via simbot

* Fix issues in balancer_utils

* override `BigNumber.config` in configured_bignumber.ts

* Special case Balancer subops in  too

* Address some more comments

* Address Balancer performance issue

* Performance improvements

* Address comment

* Fix tests

Co-authored-by: xianny <xianny@gmail.com>

packages/monorepo-scripts/src/doc_gen_configs.ts

@@ -24,6 +24,8 @@ export const docGenConfigs: DocGenConfigs = {
         // HACK: Asset-swapper specifies marketSell and marketBuy quotes with a descriminant MarketOperation Type to ignore the error, linking Buy and Sell to MarketOperation
         Buy: true,
         Sell: true,
+        // HACK: Asset-swapper specifies TFillData as any type that extends FillData
+        TFillData: true,
         IterableIterator: true,
         Set: true,
     },