Enable tap dance and other features for Whitefox

The custom matrix code was missing calls to matrix_*_quantum, disabling quantum features.

keyboards/whitefox/whitefox.c

@@ -15,3 +15,20 @@ 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 "whitefox.h"
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+void matrix_init_kb(void) {
+  matrix_init_user();
+};
+
+void matrix_scan_kb(void) {
+  matrix_scan_user();
+};
+