Improvements to handling of disconnected split keyboards. (#14033)

* Use memcmp and memcpy to compare and copy slave matrix.

...and memset to initialize `matrix` and `raw_matrix`.

Increased my scan rate (while connected) by ~100 (on Ergodox Infinity).
Effect on AVR is unknown.

Co-authored-by: Stefan Kerkmann <karlk90@pm.me>

* Fix `matrix_post_scan` signalling change on every scan while disconnected.

* Undo removal of initialization of `slave_matrix`.

This has the effect of increasing my Ergodox Infinity firmware size by 8
bytes instead of decreasing by 8 bytes, and lowers the scan rate while
connected back to the initial value before these changes, but _might_
solve some issues on AVR.

Co-authored-by: Stefan Kerkmann <karlk90@pm.me>

Add RGBW support to PWM and SPI drivers for ChibiOS (#14327)

* Add RGBW support to PWM and SPI drivers for ChibiOS

* Apply suggestions from code review

Co-authored-by: Ryan <fauxpark@gmail.com>

Co-authored-by: Ryan <fauxpark@gmail.com>

Merge remote-tracking branch 'origin/master' into develop

[Keymap] Add 'j4ckofalltrades' keymap for sofle/rev1 (#14446)

Merge remote-tracking branch 'origin/master' into develop

[Keyboard] Add Dosa40RGB + dtisaac01 (#14476)

Merge remote-tracking branch 'origin/master' into develop

[Keymap] Major Updates to Personal Kyria Keymap (#14485)

* added john ezra keymap with updates

* changed tapping term

Merge remote-tracking branch 'origin/master' into develop

fix link error for helix/rev3_5rows:five_rows (#14466)

This is a tentative quick fix.
I was adding the same functions for both #14426 and #14427 and they were in conflict.

Merge remote-tracking branch 'origin/master' into develop

Nix Studio OXALYS80 Refactor (#14473)

* update grid alignment of keycodes

* update key assignments on via keymap

A seemingly-misplaced key assignment on Layers 1 through 3 of the via keymap led to keys being off by one in comparison to the default keymap.

* switch Backslash and Backspace on via keymap base layer

Matches the via keymap's key mapping to that of the default keymap.

* use QMK 3-character notation in oxalys80.h

* add matrix diagram; remove Planck reference

* add LAYOUT_tkl_ansi and LAYOUT_tkl_ansi_wkl layout macros

* add LAYOUT_tkl_ansi_tsangan macro

* add ISO layouts

Add LAYOUT_tkl_iso, LAYOUT_tkl_iso_tsangan, and LAYOUT_tkl_iso_wkl macros.

* enable Community Layouts support

* tidy up rules.mk

* readme tidy-up

[Keyboard] Move Planck EZ off 'Proton C' board (#14479)

[Keyboard] Move Moonlander off 'Proton C' board (#14478)

Update rules.mk for xbows keyboard  (#14477)

* Update rules.mk

* Update rules.mk

* Update rules.mk

Use opendrain pin with external pullup again (#14474)

[Keymap] Adding personal keymap (#14326)

Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

[Keyboard] Add Sauce Mild Keyboard (#14287)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

[Keymap] Add gaming toggle layer & layer colors to r-pufky keymap. (#14251)

Mode 65S: Tap code and extra keys for media keys (#14471)