ソフトウェアエンジニアリング

refs #189 Improved button event to use data binding more.

refs #189 Improved textview of measuredAt to use binding more.

refs #167 Implements with DataBinding, LiveData, ViewModel, Repository and Room.

refs #167 Modify to provide an immutable property of MeasuredAt to an activity

refs #167 Move logic from activity to viewmodel

refs #167 Add ViewModel with measuredAt

refs #167 Add layouts, ViewBindings, and update Gradle version.

refs #167 Add initial projects generated by Android Studio

refs #166 Fix type of AUTHORITY

refs #166 Add Content Provider