Add some tests to the harware-wallet suite.

[isaacvr]

Feature description

Make the following tests working for hardware-wallet crypto API

• TestPubKeyToAddress2
• TestAddressRoundtrip
• TestAddressString
• TestAddressBulk
• TestDecodeBase58Address
• TestAddressFromSecKey
• TestSumSHA256

Describe the solution you'd like
These tests should run from hardware wallet project too.

Additional context
Related to this https://github.com/skycoin/hardware-wallet/issues/84

Possible implementation
Just move them to the *common files and make sure that they are working from hw.