Stable release 0.2.12

☑️ Add support for python 3.7

☑️ Add SimpleCache class for query caching(feature in beta)

• ➕ This makes it possible to improve the performance of API queries example

☑️ In 0.2.12 it's easy to integrate glQiwiApi to telegram bots using aiogram

☑️ Some bug fixes and reformat code, add __slots__ to API

☑️ Also add orjson support, but it`s optional