Added new sample "Arranging independent attributes in synchronized classes"
Merge remote-tracking branch 'origin/master'

Conflicts:
	Chapter2_BasicThreadSynchronization/src/main/java/concurrency/cookbook/chapter2/r2/arranging/independent/attributes/in/synchronised/classes/multi/Main.java
	Chapter2_BasicThreadSynchronization/src/main/java/concurrency/cookbook/chapter2/r2/arranging/independent/attributes/in/synchronised/classes/multi/MultiCinema.java
	Chapter2_BasicThreadSynchronization/src/main/java/concurrency/cookbook/chapter2/r2/arranging/independent/attributes/in/synchronised/classes/multi/MultiCinemaTicketOffice.java