[Keyboard] Add Vertex AngleR2 keyboard (#16764)

* Add files via upload

* Delete Vertex/AngleR2 directory

* Add files via upload

* Delete keyboards/Vertex/AngleR2 directory

* Add files via upload

* Add files via upload

* Add files via upload

* Update keyboards/vertex/angler2/angler2.h

* Update keyboards/vertex/angler2/info.json

* Update keyboards/vertex/angler2/keymaps/default/keymap.c

* Update keyboards/vertex/angler2/keymaps/via/keymap.c

* Update keyboards/vertex/angler2/keymaps/via/keymap.c

* Update keyboards/vertex/angler2/keymaps/via/keymap.c

* Update keyboards/vertex/angler2/keymaps/default/keymap.c

* Update keyboards/vertex/angler2/keymaps/via/keymap.c

keyboards/vertex/angler2/readme.md

@@ -0,0 +1,17 @@
+# angler2
+A customizable soldering 80% keyboard.
+
+* Keyboard Maintainer: [Vertex](https://github.com/Vertex-kb)
+* Hardware Supported: AngleR2
+* Hardware Availability: [Vertex](https://github.com/Vertex-kb)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make Vertex/AngleR2:default
+
+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 Enter the bootloader in 3 ways:
+* **Bootmagic reset**: Hold down esc in the keyboard then replug
+* **Physical reset button**: Briefly press the button on the back of the PCB
+* **Keycode in layout**: Press the key mapped to `RESET`