Changes
- added a simple application PictureMaker. It can be used to generate figures for visual comparison of models (useful for paper writing).
- the layout of MultiViewer can now be changed dynamically.
- vertex/face properties in the 'decompose' and 'merge' functions in Mapple are well preserved.
- allows for the handling of colors in both [0, 255] and [0, 65535] for las and laz file formats.
- consistent GLSL versions in shaders.
- fixed various bugs and warnings.