Add example for set terminate

[ajindal1]

Add an example for the set terminate feature using the Phi3 model

[baijumeswani]

Instead of creating a new example, could we re-use the current C++ example and modify it so that it can catch a Cntrl+C keyboard signal, and then terminate the generation, before moving on to the next user input?
This also could show users how to use this feature in a real setup.

[ajindal1]

Instead of creating a new example, could we re-use the current C++ example and modify it so that it can catch a Cntrl+C keyboard signal, and then terminate the generation, before moving on to the next user input?

Done, thanks.