[Keyboard] Add support for PaladinPad, Arya pcb and move keyboards by KapCave into their own directory (#14194)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Nachiket Kulkarni <nachiket_kulkarni@apple.com>

keyboards/kapcave/paladin64/readme.md

@@ -0,0 +1,24 @@
+# Paladin64 ALPS PCB
+
+Firmware for the Paladin64 ALPS64 PCB, with underglow and an optional
+trackpoint module.
+
+* Keyboard Maintainer: [KapCave](https://github.com/nachie)
+* Hardware Supported: Paladin64 ALPS PCB
+* Hardware Availability: [KapCave](https://kapcave.com/products/paladin64-pcb)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make kapcave/paladin64:default
+
+Or to make and flash:
+
+    make kapcave/paladin64:default:flash
+
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+## Bootloader
+
+* **Bootmagic reset**: Hold down ESC key (top left) and plug in the keyboard
+* **Physical reset button**: Briefly press the button labeled "SW_RST1" on the back of the PCB