CLIMATE-842 - Add shape files to package installation

[agoodm]

This PR makes the following changes:

• Added the ocw/shape directory to the package build.
• Set zip_safe to False in the setup script. This means builds via conda or pip will maintain the original directory structure of the ocw directory instead of bundling everything into a binary .egg file. This will make imports a tad slower, but it is necessary in order to ensure that the shapefiles can be found. It also allows users to more easily check the source code on their machines.
• Renamed usa_states shapefiles to "us_states", so that boundary_type always has the same name as the shapefile.

[OCWJenkins]

Can one of the admins verify this patch?