Quantcrypt

- Reduced KryptonKEM memory cost from 2GB to 1GB. This still requires 10^77 GB of memory
to brute force all 256 bit combinations, which is astronomically unattainable.
- Improved docstrings across multiple classes, methods and CLI commands.
- KryptonKEM now accepts ASCII armored keys as key argument values for encrypt and decrypt methods.
- Implemented encrypt and decrypt CLI commands.

Changelog:

- Added keygen subcommand for qclib CLI
- Implemented the KryptonFile class for file cryptography
- Doubled the memory cost of Argon2 default security parameters
- Argon2 now outputs 64 byte hashes by default
- Implemented the KryptonKEM class which uses asymmetric KEM keys
- Changed KEM keyfile suffixes from .qclib to .qc in CLI keygen subcommand

- Added CHANGELOG.md
- Renamed MemSize class in KDF module to MemCost and changed its interface
- Added CLI command `qclib` with options `--info` and `--version`

**Full Changelog**: https://github.com/aabmets/quantcrypt/compare/0.1.0...0.1.1

**Full Changelog**: https://github.com/aabmets/quantcrypt/commits/0.1.0