Add Eco keymap, factor Crkbd keymap to community layout, other minor tweaks
* Remove outdated Crkbd Ctrl key positioning info
* Add Left Alt key to Lily58 keymap
* Lily58 no longer overrides default TAPPING_TERM
* Refactor Crkbd keymap to use new community layout
* Fix underglow animations for Crkbd w/ Split Common
* Add initial Eco keymap
* Update outdated reference to Crkbd layout
* Add keymap links to userspace readme
* Add copyright notices to files changed in this PR
* Re-enable mouse keys to fix Chrome OS media keys
I'm not sure if there's a bug in Chrome OS, QMK, or both, but
EXTRAKEY_ENABLE isn't sufficient for media keys to work on Chrome OS.
Instead, MOUSEKEY_ENABLE is also required.
* Remove unnecessary SPLIT_USB_DETECT for Lily58
I've since swapped my Lily58 back to Elite-C v2 controllers with working
VBUS detection.
* Move Crkbd Esc and Ctrl keys; add some shortcuts
* Move MC_ALTT to userspace for cross-board support
* Sync Lily58 keymap with Crkbd
* Fix typos
* Move menu key on ergo boards to match staggered
* Unify 60_tsangan_hhkb and 60_ansi_split_bs_rshift
* Sync KBD67, Quefrency with community layouts
* Update ergo KLE images
* Update community layout KLE images
* Update KLE images/descriptions for remaining keebs
* Remove more mouse keys settings missed in #8836
* Turn off more unwanted make options
* clang-format my userspace
* Reword ergo layout docs so Crkbd is canonical
* Add a basic readme to my userspace
* Tweak Crkbd readme wording and fix typos
* Enable SPLIT_USB_DETECT for Lily58 w/ Elite-C bug
* Enable link-time optimization
* Make RGB static gradient ranges shorter
* Shift Quefrency media keys to the right
* Shift KBD67 media keys to the right
* Move some 60% keys from function to adjust layer
* Set "extra" Lily58 keys to browser back/forward
* Remove Instant60 EEPROM hack after #6968
* Remove unnecessary bits from macropad keymaps
* Update KLE images
* Move grave/tilde and backslash/pipe to left hand
* Shift media keys to be aligned with home row
* Update KLE images
* Mention new media key location in readme
* Turn off a couple more features for explicitness
* Enable PERMISSIVE_HOLD and TAPPING_FORCE_HOLD
* Fix indentation in userspace
* Shuffle around more Lily58 symbol keys
* Reformat KBD67 keymap and KLE images
* Fix Lily58 lower layer image
* Reformat Quefrency keymap and KLE images
* Fix KBD67 KLE images... again
* Add KLE links for Quefrency
* Reformat 60% layouts and KLE images
* Move Super key back to right half of Lily58
* Move Lily58 ins/del out of the way of numbers
* Fix bottom row of Lily58 KLE image
* Fix off-by-one error in Lily58 function keys
* Swap number and symbol layers
* Move grave/tilde to the left of brackets/braces
* Add KLE links
* Move function keys to Raise layer
* Move symbols nearer to home row
* Add readme for Lily58 layout
Jonathan Rascher