Change the callback functions that receive a ble_gap_conn_desc pointer to instead receive a NimBLEConnInfo reference.
* Add a reason parameter to the server disconnect callback.
* Remove connect and disconnect callback that do not receive info parameters.
* Remove onRead and onWrite Characteristic callbacks that do not receive info parameters.
* Add info parameter to Descriptor onWrite and onRead callbacks.
* Add details to migration guide.
Removes the unnecessary NimBLECharacteristicCallbacks::Status enum and callback parameter from NimBLECharacteristic::onStatus.
This was maintained for compatibility with the Arduino BLE library and is not necessary as the return code from the stack is also provided.
* Update examples/docs.
