nodeify 1.1.2+1

a nodejs-like set of packages, whose first release consists of an EventEmitter package

• 12/27/19: 1.0.0 first upload to PUB
• 12/27/19: 1.0.1 adjusted linting rules for pub.dev
• 12/27/19: 1.0.2 adjusted typing of local variable in EE class
• 12/27/19: 1.0.3 ran dartfmt to remove last warning on PUB
• 12/27/19: 1.0.4 ran added github repository to pubspec
• 12/29/19: 1.1.0 added documentation to api, and added/changed several methods on EventEmitter
• 12/30/19: 1.1.1 removed streamSize from API, as this was mistakenly left in there from development
• 12/30/19: 1.1.1+1 removed main function from class file
• 12/30/19: 1.1.2 updated readme.md
• 12/30/19: 1.1.2+1 updated readme.md example