Add z height to CuraEngine Infill Plugin Call

[EmJay276]

Description

This adds the z-height of the current layer to the settings of the CureEngine Infill plugins.
This does NOT break compatibility with existing plugins.

Type of change

• New feature (non-breaking change which adds functionality)

Added z-height to the settings dict passed to the CureEngine Infill Plugin.
This was necessary to ensure compatibility with existing plugins.

How Has This Been Tested?

• Tested with existing Infill Plugin to ensure compatibility ( https://github.com/Ultimaker/CuraEngine_plugin_infill_generate )
• Tested with my own Infill Plugin currently in development with an infill varying per layer height. The Plugin is not fully finished yet, therefore not publicly available (yet).

Test Configuration:

• Operating System: Windows 10

Checklist:

• My code follows the style guidelines of this project as described in UltiMaker Meta
• I have read the Contribution guide
• I have commented my code, particularly in hard-to-understand areas
• I have uploaded any files required to test this change

[EmJay276]

I don't know why the conan-package / conan-package-export / package-export (pull_request) test fails.
In unit-test / testing / testing (pull_request) everything seams to build properly.

[EmJay276]

Here are some additional screenshots of the new functionality enabled for Engine Plugins

[rburema]

Devs: Added internal ticket CURA-12132 to track progress of this PR.

[wawanbreton]

Hi @EmJay276, we were actually working on a similar topic on our side, so your changes have been manually integrated to #2137. Can you please check that we didn't forget anything, and then close this PR ?

[EmJay276]

@wawanbreton #2137 seems good to me!
I will close this PR after #2137 is merged