Gattlib-py

dev
None

None

**Changelog:**
- Allowed to register a notification/indication handler per GATT connection
- Added a `user_data` parameter for notification/indication handler
- Added cross-compilation support
- Support Bluez v4.99 (and still v4.101)
- Added a timeout to GATT connection to avoid to block the connection for 20 secondsa
- Added a new example `ble_scan`

This initial version releases core features of the library:
- Discover Primary Services and Characteristics
- Read/Write Characteristics Values
- Register a handle for GATT Indications/Notifications

And also contains basic examples to demonstrate this API.