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

keyboards/ferris/0_2/bling/config.h

@@ -0,0 +1,34 @@
+/*
+Copyright 2021 Pierre Chevalier <pierrechevalier83@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#undef PRODUCT_ID
+#define PRODUCT_ID 0x0002
+#undef PRODUCT
+#define PRODUCT Ferris 0.2 - Bling
+
+
+
+/* LED Drivers */
+#define DRIVER_ADDR_1 0b1110100
+#define DRIVER_ADDR_2 0b1110101
+#define DRIVER_COUNT 2
+#define DRIVER_1_LED_TOTAL 7
+#define DRIVER_2_LED_TOTAL 7
+#define DRIVER_LED_TOTAL (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)
+