freertos: Refactor component structure

This commit refactors the "freertos" component's structure as follows:

- "FreeRTOSConfig.h" related files moved to "./config" directory
- Refactored CMakeLists.txt file in preparation for v10.5.1 upgrade
    - Grouped list appends based on component organization
    - Removed some unecessarily public "include_dirs"
- Removed FreeRTOS-openocd.c
    - uxTopUsedPriority has been added back to tasks.c since v10.4.2
    - Thus the workaround in FreeRTOS-openocd.c is no longer needed and can
      be removed.

components/freertos/esp_additions/freertos_tasks_c_additions.h

@@ -7,7 +7,7 @@
 #pragma once
 
 #include "sdkconfig.h"
-#include "idf_additions.h"
+#include "freertos/idf_additions.h"
 #include "esp_private/freertos_idf_additions_priv.h"
 
 /**
@@ -54,7 +54,7 @@ struct _reent *__getreent(void)
 
 #if CONFIG_FREERTOS_ENABLE_TASK_SNAPSHOT
 
-#include "task_snapshot.h"
+#include "freertos/task_snapshot.h"
 
 /**
  * @brief List of all task lists in FreeRTOS
@@ -240,7 +240,7 @@ UBaseType_t uxTaskGetSnapshotAll( TaskSnapshot_t * const pxTaskSnapshotArray, co
  *
  * ------------------------------------------------------------------------------------------------------------------ */
 
-#if ( configENABLE_FREERTOS_DEBUG_OCDAWARE == 1 )
+#if CONFIG_FREERTOS_DEBUG_OCDAWARE
 
 /**
  * Debug param indexes. DO NOT change the order. OpenOCD uses the same indexes
@@ -270,7 +270,7 @@ const DRAM_ATTR uint8_t FreeRTOS_openocd_params[ESP_FREERTOS_DEBUG_TABLE_END]  =
     offsetof(TCB_t, pcTaskName),        /* thread_name_offset; */
 };
 
-#endif // configENABLE_FREERTOS_DEBUG_OCDAWARE == 1
+#endif // CONFIG_FREERTOS_DEBUG_OCDAWARE
 
 /* -------------------------------------------- FreeRTOS IDF API Additions ---------------------------------------------
  * FreeRTOS related API that were added by IDF