Pycomm3

- added option to embed the Unconnected Send service in a generic request
- fixed issue with get_plc_info returning the info for whatever module is in slot 0
- due to the change to using a generic message and missing the unconnected send and cip path

- fix for extra packages being included in wheel

Adjustments to response size calculation to resolve some issues with out-of-space errors when reading multiple UDTs where their size lands near the packet max size.

- simplified README, all detail information moving to the [docs](https://pycomm3.readthedocs.io/en/latest/)
- fix for auto-detect of Micro800
- fix for string array writing past element limit in request
- reworked how write values are encoded to fix string array writing issue
- could possibly use it to support structure writing
- fix to handle failed get_plc_time request
- added unconnected message support to generic read/write

- fix to remove empty multi-request packets that throw errors when attempting to send
- if all tags required a fragmented request an empty multi-request could be left over

- added modules/tasks/programs/routines to plc.info during the retrieval of the tag list
- kept module-defined tags in tag list
- fixed issues with writing large string arrays
- added get/set plc time methods
- added generic read/write methods, similar to CIP Generic connected messages in Logix
- added more debugging logging
- documentation updates