* Migrate `LAYOUTS` to data driven, 0-9
* Migrate `LAYOUTS` to data driven, A
* Migrate `LAYOUTS` to data driven, B
* Migrate `LAYOUTS` to data driven, C
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* Migrate `LAYOUTS` to data driven, G
* Migrate `LAYOUTS` to data driven, H
* Migrate `LAYOUTS` to data driven, handwired
* Migrate `LAYOUTS` to data driven, I
* Migrate `LAYOUTS` to data driven, J
* Migrate `LAYOUTS` to data driven, K
* Migrate `LAYOUTS` to data driven, L
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* Migrate `LAYOUTS` to data driven, N
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* Migrate `LAYOUTS` to data driven, P
* Migrate `LAYOUTS` to data driven, Q
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* Migrate `LAYOUTS` to data driven, X
* Migrate `LAYOUTS` to data driven, Y
* Migrate `LAYOUTS` to data driven, Z
* rename LAYOUT to LAYOUT_60_tsangan_hhkb
* info.json: correct maintainer value
Field is meant to reference the maintainer's GitHub username.
* rules.mk: enable Community Layout support
