api: Add Hicks (sinc) interpolation api

[mloubout]

Add support for kaiser-windowed sinc interpolation

Fixes #595

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 85.71429% with 28 lines in your changes are missing coverage. Please review.

Project coverage is 79.41%. Comparing base (311cd4e) to head (353af4f).

Files	Patch %	Lines
conftest.py	27.58%	19 Missing and 2 partials :warning:
devito/operations/interpolators.py	90.74%	4 Missing and 1 partial :warning:
examples/seismic/acoustic/acoustic_example.py	87.50%	1 Missing :warning:
examples/seismic/utils.py	93.33%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2342 +/- ## ========================================== - Coverage 86.66% 79.41% -7.26% ========================================== Files 232 232 Lines 43445 43578 +133 Branches 8063 8072 +9 ========================================== - Hits 37653 34606 -3047 - Misses 5087 8215 +3128 - Partials 705 757 +52 ```

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