Add Configuration options for open/close orientation

[pawlizio]

This solves #123

I've prepared and tested a configuration posibility via HA. For open_orientation and close_orientation I've created NumberEntities which can be adjusted by a slider in HA between a range of 0 and 100. So you can define your desired open and close orientation which will be used if you press the arrow buttons. You can try this also using my custom compent, but you have to use the branch "add_orientation_config": https://github.com/pawlizio/my_velux/tree/add_orientation_config

It looks as follows:

[codecov-commenter]

Codecov Report

Merging #154 (d63c92c) into master (c742a1b) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #154      +/-   ##
==========================================
+ Coverage   81.67%   81.68%   +0.01%     
==========================================
  Files          77       77              
  Lines        3269     3271       +2     
==========================================
+ Hits         2670     2672       +2     
  Misses        599      599              

Impacted Files	Coverage Δ
pyvlx/opening_device.py	51.16% <100.00%> (+1.16%)	⬆️

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[Julius2342]

Hi @pawlizio . Thank you for your PR! May you explain this logic? I looked at it but did not undestand it ... :)

[pawlizio]

I just created two variables, which I can access and modify via HA, so I'll able to change the default values:

        self.open_orientation_target: float = 50
        self.close_orientation_target: float = 100

The main change is done on my velux custom_component, but it can also implemented into the HA velux integration.

[pawlizio]

Hey @Julius2342 : Any doubts to merge this PR? `Do you need further explanation of the background?

Finally this enables users to adjust their desired orientation value which is used when calling "open_orientation" or "close_orientation" command within HA. This makes it possible for different blinds to define different open or close values.

For example some blinds are opened at 50% while others are opened at 100%. By setting self.open_orientation_target via HA you can enter that value which you want or which is best for your device. May you want to move the orientation to 30% if you press the open arrow button within HA. With this modification you have variables which you can use to define this.

[pawlizio]

Can you merge this PR?

[Julius2342]

Merged. Sorry for the delay!