Fix incorrect remote bda and time_t bugs

[jasmaa]

Notes

Library currently does not compile due to missing time_t type. It also connects briefly before disconnecting and does not receive any notifications.

This PR fixes both bugs. It:

• Includes time.h header file in ble_notification.h
• Passes in param->connect.remote_bda instead of incorrectly casted connectEventParam->remote_bda to ANCSBLEClient

It also whitespace autoformats all files and updates the minimal README example

Testing

Pulled my fork into Arduino/library and uploadedble_connection.ino example to ESP32. Connected to ESP32 in nRF app from iPhone and was able to successfully see push notifications in serial monitor:

[thanhbinh19395]

great, thank you very much for this, i used to stuck before, but i don't know much about C++ so i cannot fix it. Now it run smoothly with your fix 👍