Add Sinc Rev. 3 (#18846)

* Initial work on adding Sinc Rev. 3

* Add RGB Matrix support

* Add encoder map support

* Set I2C pins

* Update LED locations for right half

* Move USB definitions to info.json

* Update RGB modes

* Replace pin mappings for right half with correct ones

* Move config.h back to rev1/rev2 due to addition of rev3

* Convert initial Rev. 3 config work to be data-driven

* Convert RGB Matrix config to DD format

* More config cleanup

* Use full-duplex PIO

* Add MCU/bootloader settings for Rev. 2

* Change ISO Enter location since it shares location with Backslash

* Adjust build settings to reduce flash/EEPROM usage

keyboards/keebio/sinc/rev1/info.json

@@ -4,6 +4,8 @@
         "pid": "0x1267",
         "device_version": "1.0.0"
     },
+    "processor": "atmega32u4",
+    "bootloader": "atmel-dfu",
     "debounce": 5,
     "diode_direction": "COL2ROW",
     "features": {
@@ -51,7 +53,16 @@
         "led_count" : 16,
         "split_count": [8, 8],
         "animations": {
-            "all": true,
+            "alternating": true,
+            "breathing": true,
+            "christmas": true,
+            "knight": true,
+            "rainbow_mood": true,
+            "rainbow_swirl": true,
+            "rgb_test": true,
+            "snake": true,
+            "static_gradient": true,
+            "twinkle": true
         }
     }
 }