DSA implementation

This is third lab on subject "Cryptography"

Simple implementation of DSA.

1. Base classes with logic are stored in src/dsa.

2. Qt-wrapped classes, that are used as models, are stored in src/models

3. Schnorr scheme validation and keys generation logic is stored in src/schnorr_scheme

Requirements

Name	Version
sumpy	1.3
PyQt5	5.12