Pc-ble-driver-py

Changes
- Fix the range of supported Python versions (151)
- Add api for data_length_update, including workaround for incorrect event parameters (149)

Changes
* Update Python support to v3.6, 3.7 and 3.8 (140)
* Add GATTS api calls and test (138)
* Add MTU exchange test (136)
* Add printing of friendly names for error codes (133)
* Update fw version check (129)

Known issues
* The python 3.6 variant seems to be prone to segfault error when opened/closed multiple times

Changes
- Remove support for Python 2.7
- Fix WIN32 builds so that they contain the release version of pc-ble-driver
- Various bug fixes

Note: this release was published to pypi October 15th

Changes
- Add support for SoftDevice API v5
- Remove support for SoftDevice API v3
- Add support for Python 3.7
- Remove pc-ble-driver as a submodule, use vcpkg compiled version
- Updated to use latest version of pc-ble-driver (v4.1.1)
- Change build process to create wheels for different versions of Python and platforms
- Added tests for basic functionality. Still low test coverage.
- Various bug fixes