Use relative pathing

[EduardoRodriguesF]

Today, it is required to type the entire nesting specification to use such an endpoint. The idea is to use some kind of relative pathing.

Example: Let's say we are using Orders endpoint and we type the following:

$ quartz use . /orders

The . would indicate that we want to append from where we are. This might not be the best case, maybe relative should be the default? Still needs experimenting.