Added keycodes for swapping and unswapping the Control and OS keys (#6110)

Added keycodes for swapping and unswapping the Control and OS keys (#6110)

* Add MAGIC_SWAP_CONTROL_LGUI and MAGIC_UNSWAP_CONTROL_LGUI keycodes

Key codes to swap and unswap the control and windows/cmd keys

* Fix issues with pull request #6110

Renamed swap/unswap lctl and lgui key codes, added key codes to swap/unswap rctl and rgui, and moved new bool inside keycode_config.h struct to the end

* Move new keycodes to the end of the enum (#6110)

* add cases for swapped control and OS keys to mod_config (#6110)

* Add new keycodes to feature_bootmagic.md (#6110)

* Add R+L swap codes to keep in parity with AG_* codes

* Extend Magic range check to include new magic codes

* Update audio docs

* Combine 2 byte ranges into 1 word for EECONFG

Fix names for Keymap config EEPROM

* Update docs/feature_bootmagic.md

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Update docs/feature_bootmagic.md

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Update docs/feature_bootmagic.md

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Update docs/feature_bootmagic.md

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>