Tasks:
1) replace safe_alu with different modules
2) update all layers with additional internal accumulator precision:
a) gap_layer has an accumulator for running average
b) conv_layer/fc_layer has an accumulator for computing outputs
c) any other layer that has outputs that depend on accumulating multiple input values
Tasks: 1) replace safe_alu with different modules 2) update all layers with additional internal accumulator precision: a) gap_layer has an accumulator for running average b) conv_layer/fc_layer has an accumulator for computing outputs c) any other layer that has outputs that depend on accumulating multiple input values