Double RSI with stochastic Strategy (by Zhipengcfel)

Updates: Optimized the pyramiding parameter. Strategy.entry function to place orders. Strategy.oca.reduce group was used to reduce risk. The return was increased and the maxdrowdown did not rise too much comparing before.

Need to do: When stop level was triggered, it will not close all positions but only the eraliest position. I will update it to close all positons to compare.

Notes de version:

Updated the SL level and optimised parameters.

Notes de version:

Updated parameters and cleaned up scripts.