Textures files should be inside a folder (or parent folder) named textures

[omichel]

For consistency we should move these textures in a folder named "textures":

projects/robots/softbank/nao/protos/landmarks/landmark0.png
projects/robots/softbank/nao/protos/landmarks/landmark1.png
projects/robots/softbank/nao/protos/landmarks/landmark2.png
projects/robots/softbank/nao/protos/landmarks/landmark3.png
projects/robots/softbank/nao/protos/landmarks/landmark4.png
projects/robots/softbank/nao/protos/landmarks/landmark5.png
projects/robots/softbank/nao/protos/landmarks/landmark6.png
projects/robots/softbank/nao/protos/landmarks/landmark7.png
projects/robots/softbank/nao/protos/landmarks/landmark8.png
projects/robots/softbank/nao/protos/landmarks/landmark9.png
projects/objects/toys/protos/PaperBoat/newspaper.jpg
projects/objects/toys/protos/RubberDuck/eye.jpg
projects/robots/nasa/protos/sojourner/photovoltaicPanel.jpg
projects/samples/contests/ratslife/protos/e-puck/flags/rat0.jpg
projects/samples/contests/ratslife/protos/e-puck/flags/rat1.jpg
projects/robots/nasa/worlds/sojourner/panel.jpg
projects/samples/demos/worlds/moon/moonground.jpg
projects/samples/demos/worlds/soccer/soccer-256.jpg
projects/samples/demos/worlds/soccer/soccer_quarter.jpg
projects/samples/demos/worlds/gantry/1.png
projects/samples/demos/worlds/gantry/2.png
projects/samples/demos/worlds/gantry/A.png
projects/samples/demos/worlds/gantry/B.png
projects/samples/demos/worlds/gantry/C.png
projects/samples/demos/worlds/moon/earth.png
projects/samples/demos/worlds/soccer/blue.png
projects/samples/demos/worlds/soccer/yellow.png

This will also help us automating the distribution of resources.

The same applies for meshes, which should lie in a meshes folder:

projects/objects/toys/protos/PaperBoat/geom.obj
projects/objects/toys/protos/RubberDuck/beak.obj
projects/objects/toys/protos/RubberDuck/body.obj
projects/objects/toys/protos/RubberDuck/eye.obj

[omichel]

Done in #2819.