Added a new sinus generator, meant for slow sinus and delay lines
Added tests for the CachedSinusGenerator.
Added the Python wrapper for the sinus generator
Cosmit
Starting a variable delay implementation. Need to design a proper test for it.
Added a variable delay line test
Added a new UniversalVariableDelayFilter class. It is not as efficient as the UniversalFixedDelayFilter, although both need to be optimized.
Python wrappers for variable delay lines
Updated doc
Added assertion tests
Merge branch 'feature/VariableDelayLine' into develop