Plugin architecture for platforms

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Extend for other 'platforms' automatically using plugin architecture.

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Could use something like https://javascript.plainenglish.io/how-to-build-a-plugin-system-with-node-js-68c097eb3a2e

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Middleware sample plugin is done and covered with tests... it detects something and returns 'arduino' or nothing. The plugin should be turned into arduino plugin and must always return false in production to prevent false positives.