[Keyboard] Add Ixora keypad (#5931)

* added ixora files

* upload ixora

* update readme

* Update keyboards/peiorisboards/ixora/ixora.h

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update keyboards/peiorisboards/ixora/ixora.h

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update keyboards/peiorisboards/ixora/ixora.h

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update keyboards/peiorisboards/ixora/keymaps/default/keymap.c

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update keyboards/peiorisboards/ixora/keymaps/default/keymap.c

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update keyboards/peiorisboards/ixora/keymaps/wntrmln/keymap.c

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update keyboards/peiorisboards/ixora/keymaps/wntrmln/keymap.c

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* update files according to suggestions

* removed unused code

keyboards/peiorisboards/ixora/readme.md

@@ -0,0 +1,22 @@
+Ixora
+=========
+
+[Ixora](https://i.imgur.com/GqDk3XY.png)
+
+
+Ixora is an ARM-powered 6-key macropad with a USB connector, hotswap sockets, and indicator LEDs.
+
+Keyboard Maintainer: [Peioris](https://github.com/coarse)  
+Hardware Supported: Ixora PCB  
+Hardware Availability: [Peioris](https://github.com/coarse)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make peiorisboards/ixora:default:dfu-util
+
+See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.
+
+#### Developer's Note
+
+STM32F042xx chips does not allow jumping to bootloader without BOOT0 being set to high, therefore it is impossible to enter the bootloader from sending a `RESET` keycode nor using bootmagic or bootmagic lite.  
+The only way to enter bootloader is to hold the BOOT0 button while the keyboard is powering up or after a power reset (done by pressing the reset switch or sending a `RESET` keycode).