Removing the python from this repo.  See https://gitlab.futo.org/cvwright/bsspeke.git for its new home

Update to the latest bsspeke, using the newer approach to generating client secrets by hashing the password hash

Renamed the Swift package to Cbsspeke because this is going to be the low-level interface to the C code.  We'll build another package to be the nice Swifty interface.

Renamed monocypher.(c|h) to minimonocyper.(c|h) to make it clear that these are not the original versions

Cut out all of the encryption stuff from monocypher.  Should now be OK to export from the US without issue.