Perform data-type sensitive parsing of return values

[nickgaski]

Currently the CLI tool returns an unreadable (Go encoded?) hexadecimal string upon query.

For example, calling the set method with an input of 12345 returns 0x0000000000000000000000000000000000000000000000000000000000003039
when the get method is exercised. We want the returned string to be decoded into readable format.