[Keyboard] Add kt3700 (#19432)

Co-authored-by: Sergey Vlasov <sigprof@gmail.com>
Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/keyten/kt3700/info.json

@@ -0,0 +1,81 @@
+{
+    "keyboard_name": "kt3700",
+	"manufacturer": "keyten",
+    "url": "", 
+    "maintainer": "key10iq",
+	"usb": {
+        "vid": "0xEB69",
+        "pid": "0x3700",
+        "device_version": "0.0.1"
+    },
+    "processor": "STM32F401",
+    "bootloader": "stm32-dfu",
+	"layout_aliases": {
+		"LAYOUT_all": "LAYOUT_ortho_6x4"
+	},
+    "community_layouts": ["numpad_6x4", "ortho_6x4"],
+    "layouts": {
+		"LAYOUT_numpad_6x4": {
+            "layout": [
+				{"x":0, "y":0},
+				{"x":1, "y":0},
+				{"x":2, "y":0},
+				{"x":3, "y":0},
+				
+				{"x":0, "y":2},
+				{"x":1, "y":2}, 
+				{"x":2, "y":2}, 
+				{"x":3, "y":2}, 
+				
+				{"x":0, "y":3}, 
+				{"x":1, "y":3}, 
+				{"x":2, "y":3}, 
+				
+				{"x":0, "y":4}, 
+				{"x":1, "y":4}, 
+				{"x":2, "y":4}, 
+				{"x":3, "y":3, "h":2}, 
+				{"x":0, "y":5}, 
+				{"x":1, "y":5}, 
+				{"x":2, "y":5}, 
+				
+				{"x":0, "y":6, "w":2}, 
+				{"x":2, "y":6},
+				{"x":3, "y":5, "h":2}
+            ]
+        },
+		"LAYOUT_ortho_6x4": {
+            "layout": [
+				{"x":0, "y":0},
+				{"x":1, "y":0}, 
+				{"x":2, "y":0}, 
+				{"x":3, "y":0}, 
+				
+				{"x":0, "y":2}, 
+				{"x":1, "y":2}, 
+				{"x":2, "y":2}, 
+				{"x":3, "y":2}, 
+				
+				{"x":0, "y":3}, 
+				{"x":1, "y":3}, 
+				{"x":2, "y":3}, 
+				{"x":3, "y":3}, 
+				
+				{"x":0, "y":4}, 
+				{"x":1, "y":4}, 
+				{"x":2, "y":4}, 
+				{"x":3, "y":4},
+				
+				{"x":0, "y":5}, 
+				{"x":1, "y":5}, 
+				{"x":2, "y":5}, 
+				{"x":3, "y":5}, 
+				
+				{"x":0, "y":6}, 
+				{"x":1, "y":6}, 
+				{"x":2, "y":6}, 
+				{"x":3, "y":6}
+			]
+        }
+    }
+}