[+][CLASS] RSA simulation demo
[+][FEATURE] Extended Euclidean GCD algorithm + test
[+][FEATURE] Fixed Extended Euclidean GCD logging + added to sim
[*][LOG] Tracer prints to stdout.
[*][LOG] Better output for (e,d) generation.
[+~][CLASS] Certificate added (untested, unpolished)
[*~][CLASS] Certificate fixed (still unpolished)
[+][FEATURE/TEST] Fast exponentiation added + test.
[+][CLASS] Attestant trait + Trent (Attestant implementation)