Interpolation shutters

[basbruss]

Description

Add the ability to map the calculated positions to something that reflects the real-life positioning of a cover. Usefull for shutters that only start to open after x percentage position change.

Motivation and Context

• fixes: Add an offset for minimum cover position #176

How has this been tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Enhancement (non-breaking which updates existing code)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Other

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.