Address spot check feedback (#251)

* UniswapV3 VIP (#237)

* `@0x/contracts-zero-ex`: Add UniswapV3Feature

* `@0x/contracts-zero-ex`: Add UniswapV3 VIP
`@0x/contract-artifacts`: Regenerate.
`@0x/contract-wrappers`: Regenerate.
`@0x/asset-swapper`: Add UniswapV3 VIP support.

* address review comments and appease linter

* `@0x/contracts-zero-ex`: Add UniswapV3Feature tests

* Multiplex UniswapV3 (#241)

* Add UniswapV3 support to Multiplex batchFill

* Add AssetSwapper support for Multiplex UniswapV3

* fix repo scripts that use PKG= env var (#242)

Co-authored-by: Lawrence Forman <me@merklejerk.com>

* `@0x/asset-swapper`: Adjust uniswap gas overhead

Co-authored-by: Lawrence Forman <me@merklejerk.com>
Co-authored-by: mzhu25 <mchl.zhu.96@gmail.com>

* OTC orders feature (#244)

* Add OTC orders feature contracts

* Address PR feedback

* Remove partial fills for takerSigned variant

* Add function to query the min valid nonce

* Add ETH support

* Tightly pack expiry, nonceBucket, and nonce

* Address PR feedback

* OTC orders unit tests

* Bump prettier version

* Skip unnecessary math if takerTokenFillAmount == order.takerAmount

* appease CI

* Update contract-artifacts and contract-wrappers and CHANGELOGs

* `@0x/contracts-zero-ex`: Address spot check feedback

* `regen wrappers

* prettier

* `@0x/asset-swapper`: prettier and tweak gas schedule slightly for uni3

Co-authored-by: Lawrence Forman <me@merklejerk.com>
Co-authored-by: mzhu25 <mchl.zhu.96@gmail.com>

contracts/exchange/test/utils/exchange_wrapper.ts

@@ -109,7 +109,11 @@ export class ExchangeWrapper {
         opts: { makerAssetFillAmount: BigNumber; gas?: number; gasPrice?: BigNumber },
     ): Promise<TransactionReceiptWithDecodedLogs> {
         return this.exchangeContract
-            .marketBuyOrdersNoThrow(orders, opts.makerAssetFillAmount, orders.map(signedOrder => signedOrder.signature))
+            .marketBuyOrdersNoThrow(
+                orders,
+                opts.makerAssetFillAmount,
+                orders.map(signedOrder => signedOrder.signature),
+            )
             .awaitTransactionSuccessAsync({ from, gas: opts.gas });
     }
     public async marketSellOrdersFillOrKillAsync(