Find Icones to add for every modules

@matthieu.secher @yoann.audouin @boris.basic @sebastien.bourban
Can you have a look on this proposition please ?
When there is more than one icon, we have to decide which one we keep.
If you find other icons don't hesitate to put them here.

Module	Icon
Create Mesh	Create Mesh
Create Mesh	Island
Create Mesh	Refinement Area
Create Mesh	Compute
Create Boundary	Create Boundary
Interpolation Point Cloud
Interpolation Corine Land Cover
Interpolation Field
Interpolation Field	Area Layer
Refine	Homard
Mesh Transform
Strickler Table Edition