tests: mock: views: implement scimoz styling functions.

This includes startStyling, setStyling, setStylingEx, getStyleRange.

(integrated from komodo (trunk) change 81271 by marky)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@13378 b87d16e7-d29f-4ee1-b5ec-817d645d335f