sensors: Add streaming APIs

Introduce a streaming API that uses the same data path as the async API.

This includes features to the decoder:
* Checking if triggers are present

Adding streaming features built ontop of existing triggers:
* Adding 3 operations to be done on a trigger
  * include - include the data with the trigger information
  * nop - do nothing
  * drop - drop the data (flush)
* Add a new sensor_stream() API to mirror sensor_read() but add an
optional handler to be able to cancel the stream.

Signed-off-by: Yuval Peress <peress@google.com>
topic#sensor_stream

drivers/sensor/sensor_shell.h

diff --git a/drivers/sensor/sensor_shell.h b/drivers/sensor/sensor_shell.h
new file mode 100644
index 0000000..cfc8b24
--- /dev/null
+++ b/drivers/sensor/sensor_shell.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2023 Google LLC
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef ZEPHYR_DRIVERS_SENSOR_SENSOR_SHELL_H
+#define ZEPHYR_DRIVERS_SENSOR_SENSOR_SHELL_H
+
+#include <zephyr/device.h>
+#include <zephyr/drivers/sensor.h>
+#include <zephyr/rtio/rtio.h>
+#include <zephyr/shell/shell.h>
+
+struct sensor_shell_processing_context {
+	const struct device *dev;
+	const struct shell *sh;
+};
+
+extern struct rtio sensor_read_rtio;
+
+int cmd_sensor_stream(const struct shell *shell_ptr, size_t argc, char *argv[]);
+
+void sensor_shell_processing_callback(int result, uint8_t *buf, uint32_t buf_len, void *userdata);
+
+#endif /* ZEPHYR_DRIVERS_SENSOR_SENSOR_SHELL_H */