[Keyboard] move That-Canadian 's boards into /maple_computing (#16050)

keyboards/maple_computing/6ball/keymaps/default/keymap.c

@@ -0,0 +1,22 @@
+#include QMK_KEYBOARD_H
+
+#define _MAIN 0
+#define _FN 1
+
+#define KC_CAPW LGUI(LSFT(KC_3))        // Capture whole screen
+#define KC_CPYW LGUI(LSFT(LCTL(KC_3)))  // Copy whole screen
+#define KC_CAPP LGUI(LSFT(KC_4))        // Capture portion of screen
+#define KC_CPYP LGUI(LSFT(LCTL(KC_4)))  // Copy portion of screen
+#define KC_X0 LT(_FN, KC_ESC)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [_MAIN] = LAYOUT(
+    KC_F, KC_X0, KC_LCTL,
+    KC_R, KC_D,  KC_M
+  ),
+
+  [_FN] = LAYOUT(
+    KC_F,    KC_TRNS, RGB_HUI,
+    RGB_TOG, RGB_MOD, RGB_HUD
+  )
+};