Add examples
new file:   ch05/ch05x06/ForEach.java
new file:   ch05/ch05x06/ForEach2.java
new file:   ch05/ch05x06/ForEach3.java
new file:   ch05/ch05x06/NoChange.java
new file:   ch05/ch05x06/Search.java
new file:   ch05/ch05x07/Nested.java
new file:   ch05/ch05x08/Break.java
new file:   ch05/ch05x08/BreakErr.java
new file:   ch05/ch05x08/BreakLoop.java
new file:   ch05/ch05x08/BreakLoop2.java
new file:   ch05/ch05x08/BreakLoop3.java
new file:   ch05/ch05x08/BreakLoop4.java
new file:   ch05/ch05x09/Continue.java
new file:   ch05/ch05x09/ContinueLabel.java
new file:   ch05/ch05x10/Return.java