Add fixture `algam/slim-par-510`

[FloEdelmann]

• Update manufacturers.json
• Add fixture algam/slim-par-510

Thank you QUINTANA!

[github-actions[bot]]

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>

✔️ algam / slim-par-510: d-light / attributes-correctness

• ✔️ algam/slim-par-510-8 CANAUX.xml

✔️ algam / slim-par-510: dmxcontrol3 / channel-numbers

• ✔️ algam-slim-par-510-8-CANAUX.xml

✔️ algam / slim-par-510: dragonframe / json-schema-conformity

• ✔️ algam/slim-par-510.json
• ✔️ manufacturers.json

✔️ algam / slim-par-510: millumin / json-schema-conformity

• ✔️ algam/slim-par-510.json

✔️ algam / slim-par-510: qlcplus_4.12.2 / fixture-tool-validation

• ✔️ fixtures/Algam-SLIM-PAR-510.qxf

✔️ algam / slim-par-510: qlcplus_4.12.2 / xsd-schema-conformity

• ✔️ fixtures/Algam-SLIM-PAR-510.qxf