Updated Transform so it accepts a greyscale input per parameter. For each pixel, the parameter is multiplied by 2*v-1 (v being the value of the input's pixel) which makes it possible to affect the strength of each transform using an input image. New effects such as whirl and color guided offsets are now possible.
Added Decompose node (does the opposite of combine).
Used another color for inputs/outputs that expect/generate a greyscale image.
- Added a combine node that assembles channels into colors
- Added an emboss node
- Added an export node that generates additional file when exporting the material
- Refactored convolution related code
* Added a "constant wave" in the pattern node
* Updated graphEdit to detect and forbid loops
* Modified code that renders to texture to update a texture instead of returning one (so we avoid updating everything and rely on everything being updated automatically wrt textures)
* base library is loaded from filesystem (instead of package) if available
