Create a script to detect code changes to WT primitives.

A basic script should be created to detect when a developer is making changes to code which involve a primitive. There are two main steps here:

1. Create a list of primitives
2. Grep the git diff output for them

The script should be added to s_all/fast but not error. It should remind the developer that they may need to reach out to the project team to inform them of changes to the primitives.