add or change the interface for the ImageRegistraitonMethod.SetOptimizerAsAmoeba method

[zivy]

Enable specification of a vector of values for the amoeba optimizer simplexDelta parameter.

There are use cases where this flexibility is highly desirable. For example, in the case of a rigid transformation it is desirable to have different values for this parameter for the translation components and rotation components of a Euler transform. A value of 1 for translation may be reasonable as it represents 1mm, but this is not as reasonable for rotation where it represents 1rad (~60 degrees).

[blowekamp]

The optimizer's parameter scales effect the simple delta, so this is the unified way to handle non-uniform parameter spaces. The PR updates the documentations of this method.