[gegl] (17 commits) Created branch npd-squashed

[Marek Dvoroznak <dvoromar src gnome org>]

The branch 'npd-squashed' was created.

Summary of new commits:

  bbd815e... libs, operations: Add n-point deformation
  e9b3e1a... npd: Split function implementations.
  7e4c48b... npd: Mark some functions as static.
  bdc6abe... npd: Mark more functions as static and comment out some dea
  b169e8a... npd: Make NPDMatrix a direct typedef for GeglMatrix3
  fbf5a3f... npd: mark more functions as static
  6bd2d63... libs: npd: move some structures and functions from NPD oper
  ba00429... npd: access input and output buffers directly
  98c8104... operations: npd: remove mesh drawing functionality
  8968381... operations: npd: don't call gegl_buffer_linear_open on the 
  85c7bf0... operations: npd: use finalize method to free resources
  cec47ba... libs: npd: move debug functions
  93f85ad... libs: npd: remove unused functions and mark some functions 
  b543dbb... npd: NPD operation uses GEGL sampler and operates in RGBA f
  9be7b08... libs: npd: fix bug in ARAP transformation algorithm
  3a8d3eb... operations: npd: add alpha blending
  f05264a... libs: npd: better triangle texturing