[Keymap] Adding my keymaps for Preonic and XD75 (#6874)

* Added my keymaps

* Update to readmes

* Update keyboards/preonic/keymaps/pitty/config.h

Thanks!

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Update keyboards/preonic/keymaps/pitty/config.h

Thanks!

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Update keyboards/preonic/keymaps/pitty/config.h

Thanks!

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Update config.h

* Update keyboards/preonic/keymaps/pitty/keymap.c

Thanks!

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>

* Removed copyrighted material

* Update keyboards/xd75/keymaps/pitty/keymap.c

Thanks!

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>

* Update config.h

* Update config.h

* Update config.h

* Update keymap.c

* Update keymap.c

* Update config.h

* Update keymap.c

* Update keyboards/preonic/keymaps/pitty/config.h

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>

* Update keyboards/preonic/keymaps/pitty/config.h

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>

keyboards/preonic/keymaps/pitty/config.h

@@ -0,0 +1,40 @@
+#pragma once
+
+#ifdef AUDIO_ENABLE
+
+
+#    define STARTUP_SONG SONG(PREONIC_SOUND)
+#    define GOODBYE_SONG SONG(STARTUP_SOUND)
+#    define MUSIC_ON_SONG SONG(TERMINAL_SOUND)
+#endif
+
+#undef  TEMPO_DEFAULT
+
+#define TEMPO_DEFAULT 200
+
+
+/*
+ * MIDI options
+ */
+
+/* Prevent use of disabled MIDI features in the keymap */
+//#define MIDI_ENABLE_STRICT 1
+
+/* enable basic MIDI features:
+   - MIDI notes can be sent when in Music mode is on
+*/
+
+#define MIDI_BASIC
+
+/* enable advanced MIDI features:
+   - MIDI notes can be added to the keymap
+   - Octave shift and transpose
+   - Virtual sustain, portamento, and modulation wheel
+   - etc.
+*/
+//#define MIDI_ADVANCED
+
+/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
+//#define MIDI_TONE_KEYCODE_OCTAVES 2
+
+