* create MaxPoolLayer test
* Create single layer tests for MaxPool for cpu plugin
* create max_pool_2d_ceil unit test
* Update MaxPool spec
* add comments describing AUTO and NOTSET types
* create unit test for MaxPool
* add type_prop test for default values
* add MaxPool unit tests to CMakeList
* Remove second constructor and change the first one so it has default values for rounding_type and auto_pad
* style-apply
* Update the spec
* add max pool single layer test instances for different pad type
* add 5D input max pool single layer test instance for cpu plugin
* Remove max pool single layer tests files
* add more test instances for max pool single layer tests for cpu plugin
* add newline characters