Refactor serial_sequential header to aggregate sequential interface headers

- Replaced individual sequential header inclusions in `serial_sequential.h` with a single inclusion of `sequential.h` for improved organization.
- Introduced a new `sequential.h` header that consolidates all sequential interface headers, enhancing maintainability and accessibility.

These changes streamline the header management in the serial interface, aligning with ongoing refactoring efforts.

Author: Katze719

include/cpp_core/interface/sequential.h

@@ -0,0 +1,18 @@
+#pragma once
+
+// Sequential wrappers
+#include "sequential/serial_abort_read_sequential.h"
+#include "sequential/serial_abort_write_sequential.h"
+#include "sequential/serial_clear_buffer_in_sequential.h"
+#include "sequential/serial_clear_buffer_out_sequential.h"
+#include "sequential/serial_close_sequential.h"
+#include "sequential/serial_drain_sequential.h"
+#include "sequential/serial_in_bytes_total_sequential.h"
+#include "sequential/serial_in_bytes_waiting_sequential.h"
+#include "sequential/serial_out_bytes_total_sequential.h"
+#include "sequential/serial_out_bytes_waiting_sequential.h"
+#include "sequential/serial_read_line_sequential.h"
+#include "sequential/serial_read_sequential.h"
+#include "sequential/serial_read_until_sequence_sequential.h"
+#include "sequential/serial_read_until_sequential.h"
+#include "sequential/serial_write_sequential.h"

include/cpp_core/serial_sequential.h

@@ -11,19 +11,5 @@
 #include "interface/serial_set_read_callback.h"
 #include "interface/serial_set_write_callback.h"
 
-// Aggregates all *Sequential headers
-#include "interface/sequential/serial_abort_read_sequential.h"
-#include "interface/sequential/serial_abort_write_sequential.h"
-#include "interface/sequential/serial_clear_buffer_in_sequential.h"
-#include "interface/sequential/serial_clear_buffer_out_sequential.h"
-#include "interface/sequential/serial_close_sequential.h"
-#include "interface/sequential/serial_drain_sequential.h"
-#include "interface/sequential/serial_in_bytes_total_sequential.h"
-#include "interface/sequential/serial_in_bytes_waiting_sequential.h"
-#include "interface/sequential/serial_out_bytes_total_sequential.h"
-#include "interface/sequential/serial_out_bytes_waiting_sequential.h"
-#include "interface/sequential/serial_read_line_sequential.h"
-#include "interface/sequential/serial_read_sequential.h"
-#include "interface/sequential/serial_read_until_sequence_sequential.h"
-#include "interface/sequential/serial_read_until_sequential.h"
-#include "interface/sequential/serial_write_sequential.h"
+// Sequential wrappers
+#include "interface/sequential.h"