Working on the default chain with the new data structures.
Migrating the default chain to the new data structures.
Migrating the default_optimized and default_short chain to the new data structures.
Continuing to work on using new accumulate/trigger and buffer gadgets in the default chains.
Removed stupidly named test files.
Fixed BucketToBuffer gadget to properly handle E1 and E2 for cartesian trajectories.
Removed unnecessary debugging code from FFTGadget.