[mybmw] Upgrade to new BMW API (#14452)

[mybmw] Upgrade to new BMW API (#14452)

* [mybmw] fix not working binding due to API update

to make it work the code has been refactored and due to API changes some
improvements could be made. These include:
- (improvement) fingerprint generation: You can
  take a look at the README how to create a
  fingerprint more conveniently.
- (change) changed channel: charge-info has been
  renamed to charge-remaining
- (improvement) added channels:
  estimated-fuel-l-100km and estimated-fuel-mpg
  which calculates the estimated fuel consumption
  based on the range and remaining fuel liters
  - unfortunately such a calculation is not available
  for EVs as there is no information about the capacity of the battery.
- (improvement) added channel last-fetched:
  the last-updated timestamp is showing by when
  the last update of the vehicle happened. As right
  now you can not see from the channels if a thing
  is offline due to connection issues, you can check
  now if last-fetched is more than 5 minutes ago to identify an issue
- (fixed) remote command typos fixed

Fixes #14065

Also-by: Mark Herwege <mark.herwege@telenet.be>
Signed-off-by: Martin Grassl <martin.grassl@digital-filestore.de>