Added further documentation to Path class.
Added further documentation to Path class.

ImageEngine/gaffer,andrewkaufman/gaffer,goddardl/gaffer,goddardl/gaffer,johnhaddon/gaffer,ivanimanishi/gaffer,lucienfostier/gaffer,GafferHQ/gaffer,ImageEngine/gaffer,appleseedhq/gaffer,GafferHQ/gaffer,GafferHQ/gaffer,boberfly/gaffer,appleseedhq/gaffer,hradec/gaffer,hradec/gaffer,appleseedhq/gaffer,johnhaddon/gaffer,boberfly/gaffer,goddardl/gaffer,GafferHQ/gaffer,hradec/gaffer,andrewkaufman/gaffer,boberfly/gaffer,hradec/gaffer,andrewkaufman/gaffer,goddardl/gaffer,lucienfostier/gaffer,johnhaddon/gaffer,ivanimanishi/gaffer,ivanimanishi/gaffer,ImageEngine/gaffer,andrewkaufman/gaffer,ImageEngine/gaffer,hradec/gaffer,boberfly/gaffer,chippey/gaffer,ivanimanishi/gaffer,johnhaddon/gaffer,chippey/gaffer,appleseedhq/gaffer,chippey/gaffer,chippey/gaffer,johnhaddon/gaffer,GafferHQ/gaffer,lucienfostier/gaffer,lucienfostier/gaffer,andrewkaufman/gaffer