[Keyboard] Add keyboard Nafuda (#7367)

* [Keyboard] Add keyboard Nafuda

Add Nafuda keyboard.

A 7 keys keyboard.
Salicylic-acid3

* Update keyboards/nafuda/info.json

* Update keyboards/nafuda/readme.md

* Update keyboards/nafuda/readme.md

* Update keyboards/nafuda/nafuda.h

* Update keyboards/nafuda/readme.md

* Update keyboards/nafuda/rules.mk

* Update keyboards/nafuda/rules.mk

* Update keyboards/nafuda/rules.mk

* Update keyboards/nafuda/rules.mk

* info.json Update

* Update keyboards/nafuda/rules.mk

keyboards/nafuda/keymaps/default/readme.md

@@ -0,0 +1,34 @@
+# The default keymap for nafuda
+
+## Base
+|        1       |     2    |  3    |
+|:--------------:|:--------:|:-----:|
+|                |   MOUSE  |       |
+| ADJUST or BSPC |     UP   |BROWSER|
+|    LEFT        |    DOWN  |  RIGHT|
+
+
+## MOUSE
+|  1       |     2    |     3     |
+|:--------:|:--------:|:---------:|
+|          |    BASE  |           |
+|    Btn 1 | MOUSE_UP |    Btn2   |
+|MOUSE_LEFT|MOUSE_DOWN|MOUSE_RIGHT|
+
+
+## BROWSER
+|       1     |     2    |    3    |
+|:-----------:|:--------:|:-------:|
+|             |  LCTL(W) |         |
+| LCTL+LSFT(T)| WHEEL_UP | BROWSER |
+|LCTL+SFT(TAB)|WHEEL_DOWN|LCTL(TAB)|
+
+
+## Adjust
+|    1    |     2   |    3   |
+|:-------:|:-------:|:------:|
+|         | RGB_VAD |        |
+| Adjust  | RGB_SAD | RGB_VAI|
+| RGB_MOD | RGB_TOG | RGB_SAI|
+
+