Don't encode raw byte array's as strings

[robertpi]

Encoding a byte array, where the byte can be any value, as System.String always seems to lead to corruption of the byte array (ie you don't get the same values out when you try to decode it)

[metadings]

reference: commitcomment-12479353

eieiei... it's about this string strg, NOT about this byte[] bytes....

The method byte[] Z85.ToZ85Decoded(this byte[] bytes) already does what you need:

public static byte[] ToZ85Decoded(this byte[] encoded) 
{
    return Decode(encoded);
}

[metadings]

Well I see there were missing methods byte[] To~Bytes and byte[] En-/DecodeBytes(this string strg... I've made an update now (commit)[https://github.com/zeromq/clrzmq4/commit/24c4eebacafd8d2816c0ea2c66aa806378e5ff06]