[Casa-framework] test programs

[Kumar Golap]

> I think it is good that appsglish does not support unit tests. The DO stuff is (was?) tasking specific. I understood that the old DO-s are now nicely split into a tasking independent proxy class in the library and a thin tasking specific .cc file in appsglish or xmlcasa? Is that indeed true?

that is definitely the design but in terms of practice i think there
are some tools which does not yet comply...i think imager, image,
calibrater does comply by this rule.

Kumar