An even simpler example code

[fkengun]

The client_lib_multi_storytellers is not straightforward enough to provide a quick overview of the interaction with ChronoLog.

Having an example code like https://github.com/HDFGroup/hermes/wiki/4.-Basic-Programming can let the potential users quickly understand how to program with ChronoLog.

An even simpler version of client_lib_multi_storytellers can be created. No threading, or error checking, or logging. Just a main function with minimal codes to demonstrate the key APIs.