pycrypto dependency should be updated to pycryptodome

[joaonc]

Just installed pyffx and noticed that pycrypto was installed as well.

pycrypto is a defunct project and has been continued by pycryptodome. This project should be updated to use pycryptodome instead (should be a drop replacement)

[joaonc]

opened by mistake in this project.. was supposed to do this in the libffx project, which was open in another tab 😄