Pyemoncms

remove the uuid warning

mention url in uuid warning

create method async_get_uuid

remove uiid parameter from async_list_feeds method

Avoid creation of a brand new aiohttp.ClientSession on every call
using dataclass

**Full Changelog**: https://github.com/Open-Building-Management/pyemoncms/compare/v0.0.6...v0.0.7

add uiid parameter to async_list_feeds method, with default value to False
add tests

**Full Changelog**: https://github.com/Open-Building-Management/pyemoncms/compare/v0.0.5...v0.0.6