Converted phocube and its tests (#4377)

* Removed label from nn

* Restricted opencv to 3.2

* Converted phocube

* Added some phocube changes

* Added special pixel test

* Updated disclaimer in base objects.

* Added off_body test

* Added rf and no bandbin tests

* Added history entry and histogram checks

* Removed Makefile tests

* Deleted commented code

* Update phocube.h