* Swaps support for local testnet
* Create util method for comparison of token addresses/symbols to default swaps token
* Get chainId from txMeta in _trackSwapsMetrics of transaction controller
* Add comment to document purpose of getTransactionGroupRecipientAddressFilter
* Use isSwapsDefaultTokenSymbol in place of repeated defaultTokenSymbol comparisons in build-quote.js
* Check if swapTokenValue is negative and set prefix accordingly
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
Co-authored-by: Mark Stacey <markjstacey@gmail.com>