add other unit test (issue #58)
add other unit test (issue #58)

This version introduces multiple enhancements:

added all tests for basic version of collection class

Details of additions/deletions below:
--------------------------------------------------------------

Modified:   Test/CollectionTest.php
            -- Added --
                testCreateJsonCollection test basic object creation with json data
                testCreateSerializedCollection test basic object creation with serialized data
            -- Updated --
                testOriginalCollectionRevertAndReplace test add, modify and delete elements from collection with original collection save (**for now test is failing**)

chajr/class-kernel,bluetree-service/data,bluetree-service/container,chajr/class-kernel,bluetree-service/collection