[Keyboard] Add FLX Virgo (#7352)

* help flex get his board into QMK

* Put my name everywhere it matters

* Update keyboards/flx/virgo/config.h

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

* Update keyboards/flx/virgo/rules.mk

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

* Update keyboards/flx/virgo/readme.md

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

* Update keyboards/flx/virgo/readme.md

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

* Update keyboards/flx/virgo/config.h

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

* Update keyboards/flx/virgo/config.h

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

* Update keyboards/flx/virgo/readme.md

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

* add product and vendor id

* update readme with better description and img

* use fauxpark suggestion for led update

keyboards/flx/virgo/readme.md

@@ -0,0 +1,15 @@
+# virgo
+
+![virgo](https://i.imgur.com/WlWwDLC.jpg)  
+
+Custom Split TKL
+
+* Keyboard Maintainer: [MechMerlin](https://github.com/mechmerlin)
+* Hardware Supported: Virgo PCB
+* Hardware Availability: GB TBD
+
+Make example for this keyboard (after setting up your build environment):
+
+    make flx/virgo: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).