ENH: Simplify Wavelet filter function
ENH: Simplify Wavelet filter function

PyWavelets package supports applying wavelets sequentially along multiple axes, therefore there is no need for reslicing the (partially filtered) data using python functions. This reduces a lot of complexity in the code and also includes a higher performance of the filter.

Additionally, allow for 2D application of wavelets when `force2D` is set to `True`, where no wavelet will be applied along the `force2Ddimension`.

Radiomics/pyradiomics,Radiomics/pyradiomics,Radiomics/pyradiomics,Radiomics/pyradiomics