Started 202

Set up the structure for 202.

As part of this, I:
1. Modified the readme, moving the guide to pseudo-SMCL directives from the "Make SMCL.do" do-file to the readme.
2. Added "Do to SMCL.do" to the repo.
3. Added "Shared directives.do", which contains the pseudo-SMCL directives shared across the projects.