Using one header file for esp8266 stuff

espfs/espfs.c

@@ -20,12 +20,7 @@ It's written for use with httpd, but doesn't need to be used as such.
 
 #ifdef __ets__
 //esp build
-#include "c_types.h"
-#include "user_interface.h"
-#include "espconn.h"
-#include "mem.h"
-#include "osapi.h"
-#include "espmissingincludes.h"
+#include <esp8266.h>
 #else
 //Test build
 #include <stdio.h>

espfs/heatshrink_decoder.c

@@ -5,14 +5,8 @@
 
 #ifdef __ets__
 //esp build
-#define _STDLIB_H_
-#define _STRING_H_
-#define _STDDEF_H
 
-#include "espmissingincludes.h"
-#include "c_types.h"
-#include "mem.h"
-#include "osapi.h"
+#include <esp8266.h>
 
 #define memset(x,y,z) os_memset(x,y,z)
 #define memcpy(x,y,z) os_memcpy(x,y,z)