feat(demo): add an ebike demo (#7019)

lv_conf_template.h

@@ -1224,6 +1224,12 @@
 /** Vector graphic demo */
 #define LV_USE_DEMO_VECTOR_GRAPHIC  0
 
+/*E-bike demo with Lottie animations (if LV_USE_LOTTIE is enabled)*/
+#define LV_USE_DEMO_EBIKE			0
+#if LV_USE_DEMO_EBIKE
+	#define LV_DEMO_EBIKE_PORTRAIT  0    /*0: for 480x270..480x320, 1: for 480x800..720x1280*/
+#endif
+
 /*--END OF LV_CONF_H--*/
 
 #endif /*LV_CONF_H*/