move functional to tests directory

api_tests/condenser_api/get_order_book.py

api_tests/condenser_api/get_owner_history.py

api_tests/condenser_api/get_potential_signatures.py

api_tests/condenser_api/get_recent_trades.py

api_tests/condenser_api/get_recovery_request.py

api_tests/condenser_api/get_required_signatures.py

api_tests/condenser_api/get_reward_fund.py

api_tests/condenser_api/get_savings_withdraw_from.py

api_tests/condenser_api/get_savings_withdraw_to.py

api_tests/condenser_api/get_ticker.py

api_tests/condenser_api/get_trade_history.py

api_tests/condenser_api/get_transaction.py

api_tests/condenser_api/get_transaction_hex.py

api_tests/condenser_api/get_version.py

api_tests/condenser_api/get_vesting_delegations.py

api_tests/condenser_api/get_volume.py

api_tests/condenser_api/get_withdraw_routes.py

api_tests/condenser_api/get_witness_by_account.py

api_tests/condenser_api/get_witness_count.py

api_tests/condenser_api/get_witness_schedule.py