Pymetawear

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- Corrections to make it distributable via PyPI.

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- Using MetaWear-CppAPI version 0.5.22
- Changed building procedure to handle ARM processors
- Updated requirements to make pygatt default, all others extras
- Bluepy backend implemented and partially working
- BL interface selection for all backends
- Magnetometer module
- Barometer module
- Ambient Light module
- Modifying notification wrappers to accommodate Epoch value in the data.
- High speed sampling for accelerometer and gyroscope

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- Updated MetaWear-CppAPI submodule version.
- Removed temporary build workaround.

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- Critical fix for switch notifications.
- Updated MetaWear-CppAPI submodule version.
- Now using the new ``setup_metawear`` method.
- Restructured the ``IS_64_BIT`` usage which is still needed.

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- Critical fix for timeout in pybluez/gattlib backend.
- Added Gyroscope module.
- Added soft reset method to client.
- Updated examples.
- Updated documentation.

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- Cleanup of new modules sensor data parsing.
- Bug fix related to accelerometer module.
- Timeout parameter for client and backends.