Merge indictors from strategy and chart module

[rodrigo-brito]

Today, we need to define custom indicators in the Indicator function and also include custom indicators for the chart module. When we need to change a parameter, we have to change in both places. A good improvement is a merge between both parts.

• When we include an indicator in your strategy, it is automatically include in the chart module.
• We have to provide an option to hide a given indicator
• We have to provide an option to include additional indicators besides the ones from strategy