First build of Sample Granulator

Sample Granulator is working albiet issues:

  - Problems with maxiSample ---> playsback as though the sample rate
is 88200.
  - Also noticable artifacts for particles -> envelopes??
  - Rethink emitters so that emissons are over a variable period i.e.
from 1000ms ->10000ms.

Moving on to Fluid solver (will come back to the granulator at a later
stage to fix it).