Open up your Settings (Preferences menu, then Settings). In the pane that opens, your user settings will appear as a json file on the right.
If you don't already have these properties, add them with your desired values...
"folder_exclude_patterns": ["angular"],
"file_exclude_patterns": ["angular.js", "*.min.js"]
Thanks to here for getting me started with folder_exclude_patterns, and to Sublime for have settings where property names are as easy to guess as they were in this case.