Refactor informative_indicators

[Canx]

Hi, apparently informative_X_indicators() are practically identical and could be refactored to a unique informative_indicators().

Then only changing info_switcher could be enough:

def info_switcher(self, metadata: dict, info_timeframe) -> DataFrame:
    if info_timeframe == "1d":
      return self.informative_1d_indicators(metadata, info_timeframe)
    elif info_timeframe == "4h":
      return self.informative_4h_indicators(metadata, info_timeframe)
    elif info_timeframe == "1h":
      return self.informative_1h_indicators(metadata, info_timeframe)
    elif info_timeframe == "15m":
      return self.informative_15m_indicators(metadata, info_timeframe)
    else:
      raise RuntimeError(f"{info_timeframe} not supported as informative timeframe for BTC pair.")

to

def info_switcher(self, metadata: dict, info_timeframe) -> DataFrame:
        if info_timeframe in ["1d", "4h", "1h", "15m"]:
            return self.informative_indicators(metadata, info_timeframe)
        else:
            raise RuntimeError(f"{info_timeframe} not supported as informative timeframe for BTC pair.")

[Canx]

If you think it's ok I can do a PR

[iterativv]

Hi, sure thing, thanks !