Canopus OTP/MAC generator

First public version.
Functions:
- Generate time-limited one-time password for login into web-bank (OTP)
- Generate payment-based one-time password for signing a payments into web-bank (MAC)
- Scan payment-based QR on web-bank page
- Set/reset passcode to entry to the app
- Set/change keys for generating OTP and MAC
- - Scan QR with key
- - Verification of keys
- - Set keys manually
- Set time for auto logout