Bug in TestDecodeBase58Address.

[stdevAlDen]

Describe the bug
Invalid use of SKY_base58_Hex2Base58 for binary data.

Environment information:

• Platform: Any

• Go environment: Any

• Compiler info: Any

Steps to Reproduce
Steps to reproduce the behavior: Look at the following lines of code.

1.
2.
3.

Actual behavior
SKY_base58_Hex2Base58 is receiving binary data.

Expected behavior
SKY_base58_Hex2Base58 should receive a hex buffer.

[stdevAlDen]

@olemis & @stdevHan actually the SKY_base58_Hex2Base58 works with binary data not hex, so this should be fixed or the function name should be changed?
https://github.com/simelo/libskycoin/blob/5dec78d5434679bffc0f4d111a36518eb50a3e2b/lib/cgo/cipher.base58.base58.go#L22
https://github.com/skycoin/skycoin/blob/298181b47411117dcc8f6a09ab1e073b56e35a58/src/cipher/base58/base58.go#L46-L49