As part of Distributed Performance 2.0, we should clean up and be more consistent, and adhere to our own specs, wrt naming of the Evergreen projects themselves, as well as the modules of the sys-perf project.

Consistency in naming things between Evergreen project name and corresponding yaml file (see last page, left column)
Naming modules (including the functions in system_perf.yml file) in DP 2.0

Assumption in the first spec is that it is not possible / convenient to change the name of the Evergreen project, so the proposal is to change the name of yml file name.