refactor(sensors): Sensor event channel data, resolution tweaks.

* Refactor sensor events to include channel data,
  necessary for prop split encoders, and avoiding duplicate calls,
  to fetch channel data twice, etc.
* More consistent behavior driver API.
* Allow setting triggers per resolution at the behavior level optionally.

app/include/zmk/sensors.h

@@ -6,6 +6,9 @@
 
 #pragma once
 
+#include <drivers/sensor.h>
+
+#define _SENSOR_CHILD_LEN(node) 1 +
 #define ZMK_KEYMAP_SENSORS_NODE DT_INST(0, zmk_keymap_sensors)
 #define ZMK_KEYMAP_HAS_SENSORS DT_NODE_HAS_STATUS(ZMK_KEYMAP_SENSORS_NODE, okay)
 #define ZMK_KEYMAP_SENSORS_BY_IDX(idx) DT_PHANDLE_BY_IDX(ZMK_KEYMAP_SENSORS_NODE, sensors, idx)
@@ -15,3 +18,14 @@
 #else
 #define ZMK_KEYMAP_SENSORS_LEN 0
 #endif
+
+const struct zmk_sensor_config *zmk_sensors_get_config_at_position(uint8_t sensor_position);
+
+struct zmk_sensor_config {
+    uint16_t triggers_per_rotation;
+};
+
+struct zmk_sensor_channel_data {
+    enum sensor_channel channel;
+    struct sensor_value value;
+};