Improved pedometer widget

Still work in progress, but I want to get it out in the wild for you to test and to receive feedback.
I am still testing with the settings, but I am 90% satisfied.

The goal was to filter out arm movement, but to still count real steps.
Please see the readme for details.

Advantages:

• Good readability
  
• Arm movement filtering
  
• Step goal display
  
• 'Active' display
  
  

Disadvantages:

• Uses a lot of memory, but I am sure this can be improved by a real developer (so not me)
  
• Uses a lot of screen space, but this is needed for readability