Updated TCP Gateway

The TCP gateway will continually attempt to connect to the server until the connection succeeds.
Packet length was appended to TCP packets in both directions.
An updated example was provided.

Add TCP/IP Gateway and minor updates

This release creates a TCP/IP gateway to resolve issue #35. It also modifies how an asyncio event loop is created within banyan_base_aio to be consistent with the latest versions of Python.

Resolve issue #32

This incorporates the changes for pull request #33, resolving issue #32

Resolution of issue #8

This release should not affect existing applications built with a previous release.

Renamed instance variable in base classes and examples

I have renamed self.context to self.my_context in the base classes and examples to allow the Banyan base classes to participate in multiple inheritance applications.

No code was changed other than the rename.

Accommodations for Python3.8 asyncio changes for Windows

v3.8

Accommodate Python 3.8 asyncio changes for Windows

banyan_base_aio ignore psutil Zombie exceptions

This release affects banyan_base_aio.py only. When using a mac, the zombie exception is sometimes thrown by psutil. This ignores that exception.

Arduino Gateway Updates

Arduino Gateway and html updated for sonar support fixes.

Fixes for issue#5

This release addresses issue #5.

Merged Pull Request #4

The method used to determine the local IP address involved having access to the Google DNS (8.8.8.8).
The code has been modified so that is no longer the case.

The updated code will allow successful IP address discovery even if there is no connection to the Internet.
Connection to the local router is still required, but the router does not need to be connected to the Internet.

You can now use an access point to provide the local IP address for standalone operations.