v0.4.0

What's Changed

• Add anchor and offset properties to the Button сalss by @CyberDex in #6

Fixes / improvements

• onUpOut event does not fire for button
• add dynamic typings for a view to avoid casting
• replace view property name for Button with defaultView for consistency
• make checkbox text property to be be optional
• add checkbox events for onDown, onHover, onUp etc
• implement checkbox onСheck event that return boolean

Full Changelog: v0.3.0...v0.4.0