Project Specs: Create the Kotlin class NoteableItem,
you will use for Project 3c.
Project 3c will be the Jetpack Compose version of your Project 1b. Your
NoteableItem class should implement the specs in this
UML diagram:
+----------------------------------+
| NoteableItem |
+----------------------------------+
| - items: MutableList<String> |
+----------------------------------+
| + NoteableItem( ) : NoteableItem |
| + addItem(item : String) |
| + getItem( ) : String |
| + toString( ) : String |
+----------------------------------+
The toString method was probably not in your Project 1b Java version,
but you should include and test it for this project.