Adding TCKClock tests to build. Merged test_sources manually due to conflict.
Adding TCKClock tests to build. Merged test_sources manually due to conflict.

lukhnos/j2objc,lukhnos/j2objc,groschovskiy/j2objc,google/j2objc,lukhnos/j2objc,groschovskiy/j2objc,google/j2objc,groschovskiy/j2objc,mirego/j2objc,mirego/j2objc,google/j2objc,mirego/j2objc,lukhnos/j2objc,google/j2objc,google/j2objc,lukhnos/j2objc,mirego/j2objc,groschovskiy/j2objc,mirego/j2objc,groschovskiy/j2objc,mirego/j2objc,groschovskiy/j2objc,lukhnos/j2objc,google/j2objc