Few Enhancements

[Rshbh180]

Could you please add the following:

1. In the exploration module could we have dynamic position sizing (i.e. quantity should be defined by amibroker for ex. PositionSizing = -100 + RSI(); )
2. Signal Rules
   a. Option to skip consecutive signals with same values to avoid repetative order placement.
   b. LX / SX should check if LE / SE is executed before placing the order. Else we need to manually cancel the order. This happens in the exploration module.
3. Define max number of order entries per minute.