SKY_base58_Hex2Base58 works with binary data

[vidya88]

@stdevAlDen commented on Jun 13

Describe the bug
According to this comment SKY_base58_Hex2Base58 (that needs to be confirmed), SKY_base58_Hex2Base58 should receive binary data, so this len should be checked.

Environment information:

• Platform: Any
• Go environment: Any
• Compiler info: Any

Steps to Reproduce
Steps to reproduce the behavior:

1. Look at this.
2. And check this comment.

Actual behavior
Sending len/2

Expected behavior
Just send len