Changes to Get all financial statements

added the new optional query request parameter cursor

added the new optional query request parameter exchange

added the new optional query request parameter isin

added the new optional query request parameter market

added the optional property financials/balance_sheets/items/form_type to the response with the 200 status

added the optional property financials/cash_flow_statements/items/form_type to the response with the 200 status

added the optional property financials/income_statements/items/form_type to the response with the 200 status

added the optional property next_page_url to the response with the 200 status