[Candles] Candle conversion for Renko Candles

[MerlinR]

Add Candle painting to convert Candles to Renko Candles. This is alot trickier then perceived, as Candle's now (in development branch) require timestamps, where Renko candle's are time agnostic.

A solution would be to remove Candle timestamp requirement, and within CandleManager have converted Candle's added into there own List. This way we can keep appending and merging into the Candle's and have the converted Candles elsewhere without a timestamp, so we always have the source. We would then need to pass this List ref to Indicator's rather than the source but still append to source. This would effectively double the candle's but make candle conversation easier.

Note the current Candle timestamp requirement is in Development and not pushed and is planned for 2.0 release, so this change would likely need to be done with 2.0 release as well.

Related to #9