Improve Image sources

Make image sources be more usable by being returned as a dictionary rather than a list and include more attributes per image source

Object analytics, PTZ and View Area support

Added Object analytics API
Added PTZ support and parameters
Added View Area support and parameters
Add support for user groups as well as to convert a pwdgrpcgi user to a user group if existing. This will later on be used to pin point what API calls can be done if the current users privileges are known.

Improve RTSP implementation by doing less in class init methods.
Stream lined pre processing of API responses. In some places pre processing was done in update method and in others in process_raw, in some places both where used.
Rewrote bits of event management to replace use of regex with xmltodict
Improved typing.
A lot of test improvements as well as an increase in test coverage.

Possible speed improvement on web request

Use asyncio gather to parallelise web requests and await them together

Whole library is now async

v40

Bump to v40

Remove python3.8 requirement

Bump to v39

Remove python 3.8 requirement

Move to HTTPx

Replace requests lib with new HTTPx

Improve robustness of guard suite update method

Lower api version of VMD4 as well

Fix missing dependency and list applications bug

v36

Bump to v36

Fix applications packages not being included in PyPI

Bump to v35

Fix so applications are included in packages

Application APIs

Add methods for Application APIs; Application API, Fence Guard, Loitering Guard, Motion Guard and VMD4
Add events for Loitering Guard, Motion Guard, Object Analytics beta