[Keymap] adding new user (p4yne) layout with complex lighting feature… (#16085)

* [Keymap] adding new user (p4yne) layout with complex lighting features (per layer, per key, per type) and usefull layers DE/US, etc.

Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/kprepublic/bm65hsrgb_iso/keymaps/p4yne/readme.md

@@ -0,0 +1,22 @@
+# p4yne's keymap for the bm65iso
+
+* Eight layers (DE, LYR_SW_MEDIA, MOUSE_DSKTP_NAV, DYN_MACRO_NUMPAD_LEADER, GAMING, US, US_SHIFTED, DE_FLAG_LIGHTNING)
+* Different color for each layer (DRK_RED, RED, MAGENTA, PURPLE, DRK_GOLD, DRK_BLUE, BLUE, DRK_RED)
+* Keys with something else defined than KC_TRNS are lit up in the layer color, so you easily can see which keys have some function defined
+* Custom layer types for KC_TRNS keys to let lower layer shine through, or stay black/off
+* Custom lighting based on layer, key and led flag 
+* Caps-Lock lights up when active
+* Some leader shortcuts defined - nothing useful yet
+* Some space cadet keys defined for easier insertion of () and {}
+* Bootmagic lite enabled via default settings so you can plug in the keyboard while holding esc to land in bootloader mode
+* Manages all this and still fits in to the program memory
+
+Make example for this keyboard (after setting up your build environment):
+
+    make kprepublic/bm65hsrgb_iso:p4yne
+
+Flashing example for this keyboard:
+
+    make kprepublic/bm65hsrgb_iso:p4yne:flash
+
+Keyboard Maintainer: **[p4yne](https://github.com/p4yne)**