Add config component with hostname setting

main/CMakeLists.txt

@@ -1,5 +1,5 @@
 idf_component_register(
   SRCS "main.c"
   INCLUDE_DIRS "."
-  REQUIRES fatal
+  REQUIRES config
 )

main/main.c

@@ -3,9 +3,9 @@
  * Copyright (c) Camden Dixie O'Brien
  */
 
-#include "fatal.h"
+#include "config.h"
 
 void app_main(void)
 {
-	FATAL();
+	config_init();
 }