Refactored the find_* calls
Improved graph facility: introduced shapes for different fields e.g. input, output, return
Made graphing more customizable: allowed to choose fields, styles etc.
Removed some src_* calls (kept only src_yaml() and src_file()) because they were too expensive to maintain given the scope of the project
Added new unit & integration tests; increased the overall code coverage
Improved the modeling language
R/globals.R options placed in R/zzz.R.Create example functions in the API for demonstration purposes, e.g. example_app_path().
Use nomnoml package for the graph() facility.
Implement reading functions for files (src_file()), packages (src_pkg()), environments (src_env()), expressions (src_expr()) and YAML objects (src_yaml()).
Added a NEWS.md file to track changes to the package.
Package creation and initial work.