Add ctrl-M

[nuess0r]

Description

Add ctrl-M replacement controller for the IBM Model M 101/102

Detailed description of the ctrl-M controller:
https://brain4free.org/wiki/doku.php/elektronik:ctrl_m

QMK Pull Request

Link to merged QMK Pull Request:

qmk/qmk_firmware#24375

VIA Keymap Pull Request

VIA keymap PR:

the-via/qmk_userspace_via#40

Checklist

• The VIA support for this keyboard is MERGED in QMK master already (MANDATORY)
• VIA keymap is MERGED in VIA userspace master already (MANDATORY)
• The VIA definition follows the guide here: https://caniusevia.com/docs/layouts
• I have a V3 JSON version for this keyboard definition.(MANDATORY)
• I have formatted the JSON file to have consistent formatting with the rest of the repository.
• I have tested this keyboard definition using VIA's "Design" tab.
• I have tested this keyboard definition with firmware on a device.
• I have assigned alpha keys and modifier keys with the correct colors.
• The Vendor ID is not 0xFEED

[Cipulot]

@nuess0r pull the changes I applied to format the file and please move the file from the src directory to v3.
v3 is the current directory to be used, src is for V2 and legacy usage.

[nuess0r]

@Cipulot thanks for the review. I moved it now to the correct folder. Either I missed the correct folder in the via documentation or it was too small that I recognized it. Sorry for that :-)

[Cipulot]

@nuess0r thx, dw about it, looks all good now, merging.