Summary:
These files are some of the few standalone files from the `local-cli` that are used internally. This diff copies them into the one place where they are used. Note that I am leaving the old files in `local-cli`. Even if they are unused, moving them would break flow (require module verification).
This diff also moves the `assetPathUtils` file into `Libraries/Image`, which is where it is used. This was previously part of D13337412 but I had to squash them to make buck happy.
Reviewed By: TheSavior
Differential Revision: D13337304
fbshipit-source-id: 2d501109ba7d4ba94ca7e8f2953258221947b90e
