* Create Alter folder
* Revert "Create Alter folder"
This reverts commit 361103b821.
* Added a via keymap folder
* Edited files based on requested changes
* Add new keyboard, the N87
* Deleted config.h and readme.md on tsangan keymap folder
* Edited layout names on keymap.c and n87.h. Disabled audio
* Edited files based on requested changes, re-enabled audio on extra data pin B7, enabled audio click, disabled music mode
* Updated the wiring matrix for symmetric_standard layout
