- add points and dot rendermode

- add option to toggle between gl_PointSize or quad extrusion in geometry shader
7 jobs for splatcloud_rendering in 43 minutes and 12 seconds
Status Name Job ID Coverage
  Test
passed clang-c++11-Qt5 #26683
Linux MultiThreads

00:10:54

passed cppcheck #26684
Linux MultiThreads

00:03:13

passed gcc-c++11-Qt5 #26682
Linux

00:03:27

passed Mac-Cpp11 #26688
Apple

00:39:17

passed VS2013-Qt-5.5.1-x64 #26687
VS2013 Qt551

00:20:27

passed VS2015-Qt-5.6.0-x32 #26686
VS2015 Qt56

00:22:44

passed VS2015-Qt-5.6.0-x64 #26685
VS2015 Qt56

00:26:24