Allow nef compiler change dependencies

[miguelangel-dev]

Description

nefc should allow changing on the fly the dependencies. For example, the CI needs to set the dependencies to the current branch for verifying the written documentation continues working.

[miguelangel-dev]

As you can solve this using CocoaPods (our current dependency manager) adding :path => '../..' in the Podfile. We do not need to do issue, for now.

Instead to write

pod "Bow", '~> 0.4.0'

you can write

pod "Bow", :path => '../..'

to take the current branch for verifying the written documentation continues working.