[Keyboard] Add PloopyCo devices (#7935)

* Initial Commit for Ploopyco Trackball

This is a WIP at this point.  Most of it compiles, but the SPI commands are non-functioning as they come from Arduino, so don't exist in LUFA

* Convert SPI commands from arduino to LUFA

But I have no idea if this is actually correct or not

* Update keyboard readme

* Clean up ploopyco trackball

* Update readme

* Update mouse key stuff

* last minutue cleanup

* Add caveat about scroll wheel

* Fixup to code

* Additional fixup

* Add movement multiplier

* Rename folders

* mid changes

* temp

* Got it working!!!!!

* Additional cleanup of code

* Make unused pin calls more compact

* Rotation info

* Add debouncing checks

* Make everything replaceable

* Add info.json

* Include ISP flashing info

* Better handling for user customization

* Reconfigure CPI stuff

* fix issues with debug printing

* Fix tiny scroll issue

* Add and update scroll code from ploopy mouse

* Update licensing

* Add PloopyCo Mouse

* Cleanup and layout stuff

* Move common files to main folder for reuse

* Increase polling rate

* Update image for mouse

* Apply changes from code review

* Add VIA support

2 files changed, 27 insertions, 0 deletions

diff --git a/keyboards/ploopyco/trackball/keymaps/default/keymap.c b/keyboards/ploopyco/trackball/keymaps/default/keymap.c
new file mode 100644
index 0000000000..dc1ad1439f
--- /dev/null
+++ b/keyboards/ploopyco/trackball/keymaps/default/keymap.c
@@ -0,0 +1,26 @@
+/* Copyright 2020 Christopher Courtney, aka Drashna Jael're  (@drashna) <drashna@live.com>
+ * Copyright 2019 Sunjun Kim
+ * Copyright 2020 Ploopy Corporation
+ *
+ * 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/>.
+ */
+#include QMK_KEYBOARD_H
+
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [0] = LAYOUT( /* Base */
+        KC_BTN1, KC_BTN3, KC_BTN2,
+          KC_BTN4, KC_BTN5
+    ),
+};
diff --git a/keyboards/ploopyco/trackball/keymaps/default/readme.md b/keyboards/ploopyco/trackball/keymaps/default/readme.md
new file mode 100644
index 0000000000..f965ef3c32
--- /dev/null
+++ b/keyboards/ploopyco/trackball/keymaps/default/readme.md
@@ -0,0 +1 @@
+# The default keymap for Ploopyco Trackball