1up60rgb Keyboard Support (#2404)

* Add files via upload

* Update keymap.c

* Update keymap.c

* Update 1up60rgb.c

* Tidy up the code a bit for submission into QMK Master
- Create readme file
- Fix compile issue with standard keymap
- Create default keymap
- Remove unused Makefile

* Keymap Adjustments

* Reworked alternate layouts

* Reworked keymaps

* Update keymap.c

* Update readme.md

Add carriage return to make README cleaner

keyboards/1up60rgb/readme.md

@@ -0,0 +1,13 @@
+# 1upkeyboards 60% RGB
+
+Firmware for custom keyboard PCB with 60% key layout.
+
+Keyboard Maintainer: [rempired](https://github.com/rempired)  
+Hardware Supported: 1upkeyboards 60% RGB  
+Hardware Availability: [1upkeyboards](https://1upkeyboards.com/rgb-underglow-1up-pcb.html)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make 1up60rgb:default
+
+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.