add: booking-related APIs and test coverage for Order and Logistic resources

fix: correct endpoint paths in ProductTest for tier variation API calls

fix: correct form field name in MediaSpace upload image API #14

fix: correct endpoint paths for tier variation API calls

add: support save_path option in downloadShippingDocument API

fix: update page size in MerchantTest to match expected cursor

add: unit test

add: custom api hostname

fix: get shop performance url

add: some new api on AccountHealth

Update Payment - GetWalletTransactionList Request to include missing params. (#11)

fix: handle error_auth

send_message api business_id = 11 bug that sends messages (#9)

Add business_type and conversation_id to differentiate seller buyer chat and seller affiliate chat (#7)

add: chat api - delete_message (#5)