Update of texture coordinates in OglModel

[hugtalbot]

Further to #2300 the coordinate textures do no update anymore when using a TextureInterpolation as input of texcoord

Due this change:

m_vtexcoords.setParent(nullptr); // manually break the data link to follow topological changes

deleting this line solves the issue, but I would need your insight @epernod on what was exactly intended here.

[epernod]

example scene, log and backtrace, please :)

[hugtalbot]

@epernod the examples/Components/forcefield/TetrahedronDiffusionForceField.scn

[hugtalbot]

See #2412
explanation : topology comes from the IdentityMapping which maps a topology possibly with topological changes while the textcoords are coming from the TextureInterpolation (here no able to handle topo changes). To avoid crash the link is cut. To avoid this, only use: handleDynamicTopology="0"

[epernod]

As mentioned above, this has been fixed by PR #2415 and #2445