actlearn: data: Add Options to CASAS load function
actlearn: data: Add Options to CASAS load function

1. Normalize: Choose whether to normalize all calculated features between 0 and 1
2. Per_Sensor: Some feature can be evaluated as per-sensor features.

Signed-off-by: Tinghui Wang <b242afeef4efadf7acab60ba9204ad943623eea5@wsu.edu>

TinghuiWang/ActivityLearning