MODULATORS: Fixed #63 and #62

This fixes the click behaviour and the upward decay - both issues were
due to the same root cause: a bad value being used
for the increment computation when the attack was null.

Signed-off-by: Gama <misept.dieseneuf@gmail.com>
TESTS: Updated tests to how #63, now clean management of click envelop

This may also help understand #62.

Signed-off-by: Gama <misept.dieseneuf@gmail.com>
MODULATORS: In Adsd, fixed possible issue with parameterization

When applying parameters, the section should not be changed - it is linked
to the cursor only and thus may only be changed in the processing block.

Signed-off-by: Gama <misept.dieseneuf@gmail.com>
UI: Moved debug text editor for readibility

Signed-off-by: Gama <misept.dieseneuf@gmail.com>
TESTS: Fixed functions being synonyms when no SIMD set is used

Signed-off-by: Gama <misept.dieseneuf@gmail.com>