chore: reorganize the api and tests file structure#37

mohammadalfaiyazbitgo merged 2 commits into

WP-4759-ecdsa-signing-advanced-walletsBitGo/advanced-wallets:WP-4759-ecdsa-signing-advanced-walletsfrom

WP-00000-refactor-api-handlers-testsBitGo/advanced-wallets:WP-00000-refactor-api-handlers-testsCopy head branch name to clipboard