* Initial code for BYOTI provider. Plus tidying module references.

* kql_base.py provider for BYOTI

* BYOTI provider with unit tests.

Fixes for mypy warnings

* Black formatting

* Re-wrote test_tiproviders to use mocked http requests.  Simplified tests to make it easy to add new types.

Now also tests lookup_iocs for http providers.

* Bug fixes and TIProviders.ipynb Usage notebook

* Documentation updates

* Renaming AzureSentinelByoti to AzSTI.

Fixing a couple of bugs foundin network queries and geoip.py

* Few more bugs and typos found in testing