[Keyboard] Add Buzzard support (#15493)

* add buzzerd

(untested, WIP)

* configured linear actuator and fixed keymap

* configuration tweaks and added custom keymap

* add custom tapping term for home row mod

* added readme

* remove ionide folder

* added scroll function to trackpoint

* keymap reworked

* using one shot shift and removed dynamic macros

* reworked default keymap

* adapted to latest qmk changes

* remove caps word from default keymap

* use provided coding guidelines

* use get_highest_layer in favour  of biton32

* fixed formatting

* remove unnecessary define statement

keyboards/buzzard/keymaps/default/config.h

@@ -0,0 +1,39 @@
+// Copyright 2021 Christoph Rehmann (crehmann)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+// Configure the global tapping term (default: 200ms)
+#define TAPPING_TERM 200
+
+// Prevent normal rollover on alphas from accidentally triggering mods.
+#define IGNORE_MOD_TAP_INTERRUPT
+
+// Enable rapid switch from tap to hold, disables double tap hold auto-repeat.
+#define TAPPING_FORCE_HOLD
+
+// Apply the modifier on keys that are tapped during a short hold of a modtap
+#define PERMISSIVE_HOLD
+
+// Using the right side as master
+#define MASTER_RIGHT
+
+#ifdef HAPTIC_ENABLE
+// this configuration has no effect because the haptic exclusion is implemented with
+// __attribute__((weak)) bool get_haptic_enabled_key(uint16_t keycode, keyrecord_t *record)
+// in the default keymap and reacts only to mouse clicks. 
+//#define NO_HAPTIC_MOD
+#define NO_HAPTIC_FN
+#define NO_HAPTIC_ALPHA
+#define NO_HAPTIC_PUNCTUATION
+#define NO_HAPTIC_NAV 
+#define NO_HAPTIC_NUMERIC
+#define DRV_GREETING       alert_750ms
+#define DRV_MODE_DEFAULT   sharp_tick1
+#endif
+
+
+#ifdef PS2_MOUSE_ENABLE
+#define PS2_MOUSE_SCROLL_BTN_MASK (1<<PS2_MOUSE_BTN_RIGHT)   // using the right mouse button for scrolling (other buttons can be configured)
+#define PS2_MOUSE_SCROLL_BTN_SEND 500
+#endif