Add fixture dmg-lumiere/sl1-switch

[FloEdelmann]

• Add fixture dmg-lumiere/sl1-switch

Thank you @Linkredible!

[github-actions]

Export files validity

(Output of test script tests/github/exports-valid.js.)

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>

✔️ dmg-lumiere / sl1-switch: d-light / attributes-correctness

• ✔️ dmg-lumiere/sl1-switch-2ch.xml

✔️ dmg-lumiere / sl1-switch: dmxcontrol3 / channel-numbers

• ✔️ dmg-lumiere-sl1-switch-2ch.xml

✔️ dmg-lumiere / sl1-switch: dragonframe / json-schema-conformity

• ✔️ dmg-lumiere/sl1-switch.json
• ✔️ manufacturers.json

✔️ dmg-lumiere / sl1-switch: millumin / json-schema-conformity

• ✔️ dmg-lumiere/sl1-switch.json

❌ dmg-lumiere / sl1-switch: qlcplus_4.12.2 / fixture-tool-validation

• ❌ fixtures/DMG-Lumière-SL1-Switch.qxf

  Namespace(map=False, convert=None, validate=['.']) Starting validation ./manufacturer/fixture.qxf:2-channel: No physical data found 1 definitions processed. 1 errors detected

✔️ dmg-lumiere / sl1-switch: qlcplus_4.12.2 / xsd-schema-conformity

• ✔️ fixtures/DMG-Lumière-SL1-Switch.qxf