Removing memory leaks, UI fix for macOS 11.3

Updated firmwares to sending rate of 1-2

Fix swift-format complaints

Move nearby marker to the right

Importing and exporting accessories, Showing the state of the Mail Pl…

…ug-In comunication

Use simpler and correct fix for light mode

Original fix introduced in c3a4610

Add generic HCI script (fixes seemoo-lab#3)

Initial commit