nested support in in-app mfkey tool

[golyalpha]

Is your feature request related to a problem? Please describe.
The Mfkey32 tool in the app can currently only be used to crack nonces collected from the reader, cracking nested nonces requires the use of the MFKey flipper app which is slow, or 3rd party apps.

Describe the solution you'd like
Just like the MFKey app on the flipper, the Mfkey32 tool in the app could support cracking nonces not only from .mfkey32.log but also .nested.log files (using the appropriate approach, of course).

Describe alternatives you've considered
Currently I fall back on using the old (ported to new NFC API) Flipper Nested app and it's laptop tool for cracking nonces since that's much faster than the MFKey flipper app (even though getting the nonces takes a little bit longer)

[murthal]

py -m pip install --upgrade ufbt

[murthal]

py -m pip install --upgrade ufbt