Devoncarew analyzer upgrade 2

Added support for analyzing package: references.

- send package info into the analysis context; add a PackageUriResolver implementation
- files in the `packages/` folder are now read-only
- we don't analyze 'derived' resources - files in build/ (or cache/)
- we don't report errors for files in the packages/ folder
- some fixes to various library names in source files

@bwilkerson, @keertip, @umop