Add a new chip library system

[aijony]

Defines a system for post-loading new arguments to quilc --isa ....

Right now this is a separate system for two reasons:

• It keeps mutation out of cl-quil
• It isolates the development/archival of ISAs to a separate location

Semi-relevant issue: #818

[aijony]

I went ahead and added the command line option, I think I did it right.