Add fixture `shehds/led-flat-par-7x12w-rgbw-light`

[FloEdelmann]

• Add fixture shehds/led-flat-par-7x12w-rgbw-light

Thank you @the-red-eye-studio!

[github-actions[bot]]

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Test the exported files of selected fixtures against the plugins' export tests. You can run a plugin's export tests by executing: $ node cli/run-export-test.js -p <plugin name> <fixtures>

:heavy_check_mark: shehds / led-flat-par-7x12w-rgbw-light: d-light / attributes-correctness

• :heavy_check_mark: shehds/led-flat-par-7x12w-rgbw-light-8ch.xml

:heavy_check_mark: shehds / led-flat-par-7x12w-rgbw-light: dmxcontrol3 / channel-numbers

• :heavy_check_mark: shehds-led-flat-par-7x12w-rgbw-light-8ch.xml

:heavy_check_mark: shehds / led-flat-par-7x12w-rgbw-light: dragonframe / json-schema-conformity

• :heavy_check_mark: shehds/led-flat-par-7x12w-rgbw-light.json
• :heavy_check_mark: manufacturers.json

:heavy_check_mark: shehds / led-flat-par-7x12w-rgbw-light: millumin / json-schema-conformity

• :heavy_check_mark: shehds/led-flat-par-7x12w-rgbw-light.json

:heavy_check_mark: shehds / led-flat-par-7x12w-rgbw-light: qlcplus_4.12.2 / fixture-tool-validation

• :heavy_check_mark: fixtures/Shehds-LED-Flat-Par-7x12W-RGBW-Light.qxf

:heavy_check_mark: shehds / led-flat-par-7x12w-rgbw-light: qlcplus_4.12.2 / xsd-schema-conformity

• :heavy_check_mark: fixtures/Shehds-LED-Flat-Par-7x12W-RGBW-Light.qxf

[kengruven]

#3722 looks like a duplicate of #3425 and #2904.

They're all about the same (it's a simple fixture), but interestingly the user manual linked to by #2904 has slightly more detail than the others. Still not enough for a complete description, but enough to break ch.3 into 6 sub-ranges.