* Removed some stuff

* Looking at constructors

* Updated request

* Added client close

* working client creation

Co-authored-by: simorenoh <simonmorenohe@gmail.com>

database read works, but ignored exception is returned:
Fatal error on SSL transport
NoneType has no attribute 'send' (_loop._proactor.send)
RuntimeError: Event loop is closed
Unclosed connector/ connection

Added methods needed to use async with when initializing client, but logs output "Exception ignored... Runtime Error: Event loop is closed"

Move branch into local fork

missing upsert and other resources

missing read_all_items and both query methods for container class

Complete item CRUD functionality - only missing queries

Query functionality and container query methods

also fixed README and added examples_async

CosmosDB Asynchronous client

still missing discussion resolution on SSL verification and tests for async functionality under test module (apart from samples which are basically end to end tests)

…connection_policy private

is_system_key verifies that an empty partition key is properly dealt with if ['partitionKey']['systemKey'] exists in the container options - however, we do not allow containers to be created with empty partition key values in the python sdk, so the functionality is needless

Reverting last commit, will find way to init is_system_key for now

Clarifying comments for README

Co-authored-by: Gahl Levy <75269480+gahl-levy@users.noreply.github.com>

Co-authored-by: Simon Moreno <30335873+simorenoh@users.noreply.github.com>