* Migrate `LAYOUTS` to data driven, 0-9
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* Migrate `LAYOUTS` to data driven, handwired
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* Moving sentraq keyboards to sentraq subdirectory.
* Updating readme markdown to correct make commands.
* Updating s60_x references to point to the new vendor subdirectory.
* Fixed stripped spaces in markdown.
* Updated help information in s60_x readme and linked to additional documentation.
