Base64 encoding.

Functions
std::vector< std::uint8_t >	hipipe::base64_decode (const std::string &b64data)
	Decode base64 encoded string to a vector of bytes.
std::string	hipipe::base64_encode (const std::vector< std::uint8_t > &data)
	Encode a vector of bytes to a base64 encoded string.

Detailed Description