Fix-affine-interpolation

[StRigaud]

closes clEsperanto/pyclesperanto#204

[StRigaud]

Require to solve the issue: clEsperanto/clij-opencl-kernels#40

[StRigaud]

I roled back interpolation kernel to its correct code, using float type read coordinate.
I enable float type coordinate for IMAGE type memory in the defines
If interpolation is requested: we copy the src buffer into an image memory type

Interpolation still fail though: the kernel is reading 0 values everywhere ...

[StRigaud]

This should fix the interpolate option on the transform, as well as an other issue related to IMAGE which was making OpenCL to always read 0 from cl_image.

Interpolation results (here scale up of factor 2) was compared with FIJI billinear.

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 18.46154% with 53 lines in your changes missing coverage. Please review.

Project coverage is 47.93%. Comparing base (cbf4ec1) to head (dca0190).

Files	Patch %	Lines
clic/src/execution.cpp	24.39%	2 Missing and 29 partials ⚠️
clic/src/openclbackend.cpp	7.14%	13 Missing ⚠️
clic/src/transform.cpp	10.00%	1 Missing and 8 partials ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #310      +/-   ##
==========================================
+ Coverage   47.34%   47.93%   +0.58%     
==========================================
  Files         235      235              
  Lines        3128     3146      +18     
  Branches     1550     1571      +21     
==========================================
+ Hits         1481     1508      +27     
+ Misses        419      368      -51     
- Partials     1228     1270      +42     

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