Fix Volume Price Trend Indicator

fixing aroon indicator, future warnings and data leakage

fix bug on KAMA indicator

Customize Keltner Channel ATRs multiplier

Customize Keltner Channel ATRs multiplier

Fixing bug on name columns (PVO - PPO) and fixing numpy vulnerability…

… issue

Fixing bug on name columns (PVO - PPO) and fixing numpy vulnerability…

… issue

include vectorized option as input parameter

clean code (prospector, black), updated API

Fixing Wrapper #204