testhat library is missing to run tests

[vsoch]

This should likely be a part of the expfactoryr library itself, since it's core functionality is also to test.

Error: ‘testthat’ >= 1.0.2 must be installed for this functionality.

@earcanal the library has other purpose as well, like to parse data? We should have a Docker entrypoint with different commands - I'll make "test" coincide with testing a package folder (and if there are other command line stuffs we can add/talk about after)

[vsoch]

ahh! Magic, lol:

devtools::install_local('/code', quiet=FALSE)

to

devtools::install_local('/code', quiet=FALSE, dependencies=TRUE)