Binary :: toQuotedPrintable - Create quoted printable string from binary data block
The function converts the binary data block into a quoted printable string. All characters not considered as printable are converted into hexadecimal values preceded by '=' (e.g. 1 --> =01).
Return value: Base 64 string ( odaba::String & )
The string contains binary data represented as 6-bit characters (base 64).