Support all the 0.2 Ferris variants (#12653)

* Support all the 0.2 Ferris variants

For the Compact, the High and the Mini, create a new directory so each
keyboard may have the correct USB descriptor and a readme with more
specific information about it.

For the Bling, also add support for the underglow functionality.

Change the "MANUFACTURER" string to "Cuddly Keyboards Ltd.", the
name of the company I incorporated to sell keyboards, and change the
default descriptor from "Ferris the keeb" to "Ferris 0.2" which is more
descriptive.
I didn't update the 0.1 variants as I don't intend to sell these kits
with "Cuddly Keyboards". The firmware is mostly there to support
existing users.

Update the "hardware availability" to point to my new website:
cuddlykeyboards.com.

* Add RGB mode toggle to my keymap and to the default keymap

* Improve wording in the readme

1 files changed, 16 insertions, 0 deletions

diff --git a/keyboards/ferris/0_2/bling/readme.md b/keyboards/ferris/0_2/bling/readme.md
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+# Ferris 0.2 - Bling
+
+![Ferris 0.2 - Bling](https://i.imgur.com/8dmm5Mrh.jpg)
+
+Ferris 0.2 with RGB underglow.
+
+* Keyboard Maintainer: [Pierre Chevalier](https://github.com/pierrechevalier83)
+* Hardware Supported:
+    * Ferris 0.2 - Bling: (STM32F072 MCU on the left, MCP23017 on the right, IS31FL3731 led driver chip on each side)
+* Hardware Availability: [Cuddly Keyboards](https://cuddlykeyboards.com)
+
+Make examples for this keyboard (after setting up your build environment):
+
+    make ferris/0_2/bling: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).