Make SD be able to coexist with SPIFFS

Ideally the library should be reworked to use the same API

Author: Me No Dev

libraries/SD/src/File.cpp

@@ -14,6 +14,9 @@
 
 #include <SD.h>
 
+using namespace sd;
+using sd::File;
+
 /* for debugging file open/close leaks
    uint8_t nfilecount=0;
 */

libraries/SD/src/SD.cpp

@@ -52,6 +52,9 @@
 
 #include "SD.h"
 
+using namespace sd;
+using sd::File;
+
 // Used by `getNextPathComponent`
 #define MAX_COMPONENT_LEN 12 // What is max length?
 #define PATH_COMPONENT_BUFFER_LEN MAX_COMPONENT_LEN+1

libraries/SD/src/SD.h

@@ -20,6 +20,8 @@
 #include <utility/SdFat.h>
 #include <utility/SdFatUtil.h>
 
+namespace sd {
+
 #define FILE_READ O_READ
 #define FILE_WRITE (O_READ | O_WRITE | O_CREAT)
 
@@ -132,6 +134,10 @@ class SDClass {
   friend boolean callback_openPath(SdFile&, char *, boolean, void *); 
 };
 
+}
+
+using sd::SDClass;
+
 extern SDClass SD;
 
 #endif