[Keyboard] keyboards/anavi: Add ANAVI Macro Pad 2 (#11821)

ANAVI Macro Pad 2 is an open source mini mechanical keyboard with
2 keys and backlit. Powered by ATtiny 85 microcontroller and with
microUSB connector. Designed with KiCad.

Provides the following keymaps for ANAVI Macro Pad 2:

- Default (with a, b and combo to control the LEDs)
- Copy & paste
- Tap dance example with a, b and c
- Mute
- Volume
- Zoom
- Jitsi Meet

Co-authored-by: Drashna Jaelre <drashna@live.com>
Signed-off-by: Leon Anavi <leon@anavi.org>

Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/anavi/macropad2/info.json

@@ -0,0 +1,16 @@
+{
+  "keyboard_name": "ANAVI Macro Pad 2",
+  "url": "https://anavi.technology/",
+  "maintainer": "leon-anavi",
+  "width": 2,
+  "height": 1,
+  "layouts": {
+    "LAYOUT": {
+      "key_count": 2,
+      "layout": [
+        {"x":0, "y":0},
+        {"x":1, "y":0}
+      ]
+    }
+  }
+}