Merge branch '1-thought-class' into 'master'

Resolve "thought class"

Closes #1

See merge request !1

src/sample/Thought.java

+package sample;
+
+public class Thought {
+    private String thoughtText;
+
+
+}

src/sample/ThoughtManager.java

+package sample;
+
+import java.util.List;
+
+public class ThoughtManager {
+    private List<Thought> thoughts;
+}