[terraform] Support arbitrary arguments about circleci-orbs HOT 2 OPEN

If we looked at doing this, and did not implement "lock_timeout" as an explicit parameter, think of the following problem:

The user specifies say lock-timeout=30s for plan and apply, passed in as a arbitrary argument to each.

How would the orb know to use this parameter for init (called implicitly) as well?

The commands all have a different set of supported parameters (init/plan/apply etc...) so the arbitrary args couldn't be applied everywhere TF is called by the orb.

#113 looks good to me - I think the parameters should be evaluated and added as the need arises - the arbitrary way makes something complex appear simple and might lead to issues imo

from circleci-orbs.

That is a good point. I'm not too bothered by not having this if the forwards compatibility isn't worth the hassle.

One way that I can think to workaround the problem would be to have separate parameters for each command such as init_parameters and plan_parameters.

from circleci-orbs.