CAY-1971 Variants of Property.like(..) : contains(..), startsWith(..), endsWith(..)

unit tests for existing methods
CAY-1971 Variants of Property.like(..) : contains(..), startsWith(..), endsWith(..)
CAY-1971 Variants of Property.like(..) : contains(..), startsWith(..), endsWith(..)

* implementing escaping
re-categorizing Test vs IT

* some test cases were misplaced
* some no longer require "_InContext" qualifier in the name
CAY-1971 Variants of Property.like(..) : contains(..), startsWith(..), endsWith(..)

* integration tests
CAY-1971 Variants of Property.like(..) : contains(..), startsWith(..), endsWith(..)
javadocs
cleanup, no change