Group by volume additionally

[theimo1221]

Had a nice and good discussion with Paul. We found many good and some little points.

Pull #41 did a lot of changes towards original goal of detecting whales and fake Resistances/ Supports.

Currrently we spot fakes by grouping price.
An additional approach would be grouping by volume (e.g. 50 orders of 1.53 ETH from $962.65 to $984.42.

At current state we thing adding a bar at the position of summed up volume with the bot beeing at the start and top beeing at the end of price range could be best.

Needed steps to do this:

• Calculate new dataset
• Grouping dataset
• adding go.bar or rectangle
• needs description in legend
  I guess go.bar won´t work cause we start at different y-levels

[pmaji]

Definitely something worth exploring. Lower on the priority list but still an interesting possibility worth of future iteration.

[theimo1221]

If #49 get´s pulled and legend is updated (@pmaji ) this can be closed

[pmaji]

All good to go. This addition is massively helpful @theimo1221. I'll do a re-write of the README tonight because this changes a lot.

[pmaji]

Integrated new information into README; marking issue as completed (just need to add documentation via extensive comments now).