Updating the crypto library dependency

[smatton]

Hello,

Is there a particular reason why the crypto library dependency is fixed at such an old version? I am wondering if there is anything that would break if I update this to a more recent version in a fork, or if it can be updated in this repo?

[aykevl]

It looks like we only use the crypto package in the 'rawterm' sub-package, which is only used for examples and only to put the terminal in "raw" state. The main Bluetooth package doesn't use it. I think it can be updated without problem.