Split string-sending debugger API into output- and log-sending functions (#2461)

This helps to avoid the use of non-public headers and
protocol-internal constants in external code (e.g., in jerry-port
and jerry-ext).

The patch also cleans up the necessary includes in jerry-core public
headers, and the include order in jerry-port/default public headers.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

docs/07.DEBUGGER.md

@@ -359,20 +359,51 @@ Sends the program's output to the debugger client.
 **Prototype**
 
 ```c
-  void
-  jerry_debugger_send_output (jerry_char_t buffer[], jerry_size_t string_size, uint8_t type)
+void
+jerry_debugger_send_output (jerry_char_t buffer[], jerry_size_t string_size)
 ```
 
 **Example**
 
 ```c
+{
   jerry_init (JERRY_INIT_EMPTY);
   jerry_debugger_init (5001);
 
   jerry_char_t my_output = "Hey, this should be sent too!";
   jerry_size_t my_output_size = sizeof (my_output);
 
-  jerry_debugger_send_output (my_output, my_output_size, JERRY_DEBUGGER_OUTPUT_OK);
+  jerry_debugger_send_output (my_output, my_output_size);
 
   jerry_cleanup ();
+}
+```
+
+### jerry_debugger_send_log
+
+**Summary**
+
+Sends the program's log to the debugger client.
+
+**Prototype**
+
+```c
+void
+jerry_debugger_send_log (jerry_log_level_t level, jerry_char_t buffer[], jerry_size_t string_size)
+```
+
+**Example**
+
+```c
+{
+  jerry_init (JERRY_INIT_EMPTY);
+  jerry_debugger_init (5001);
+
+  jerry_char_t my_log = "Custom diagnostics";
+  jerry_size_t my_log_size = sizeof (my_log);
+
+  jerry_debugger_send_log (JERRY_LOG_LEVEL_DEBUG, my_log, my_log_size);
+
+  jerry_cleanup ();
+}
 ```