Add in 4 bytes at a time:
Add in 4 bytes at a time:

Create a new CFU called MultiplyAccumulateFourInstruction to vectorize
the number of bits loaded into a 32 bit int.

Signed-off-by: Rachel Sugrono <220b55dd8b2546a9e5d69277dde87365e52f4e0a@google.com>

google/CFU-Playground,google/CFU-Playground,google/CFU-Playground,google/CFU-Playground