Rewrite, with the following features:

- Move to jinja2 templates for the opencl code
- Combine PML code into the E, H updates for speed
- Add Poynting vector calculation code, including precalculation during H update
- Use arrays for PML parameters (p0, p1)
- Switch to linearized, C-ordered fields (~50% performance boost??)

- Added jinja2 and fdfd_tools dependencies

requirements.txt

@@ -1,6 +1,8 @@
 numpy
 h5py
 pyopencl
+jinja2
 -e git+https://mpxd.net/gogs/jan/float_raster.git@release#egg=float_raster
 -e git+https://mpxd.net/gogs/jan/gridlock.git@release#egg=gridlock
 -e git+https://mpxd.net/gogs/jan/masque.git@release#egg=masque
+-e git+https://mpxd.net/gogs/jan/fdfd_tools.git@master#egg=fdfd_tools