add missing headers

include/mbgl/storage/default/request.hpp

@@ -7,6 +7,7 @@
 #include <mbgl/util/noncopyable.hpp>
 
 #include <functional>
+#include <memory>
 
 typedef struct uv_async_s uv_async_t;
 typedef struct uv_loop_s uv_loop_t;

platform/default/sqlite3.cpp

@@ -2,6 +2,7 @@
 #include <sqlite3.h>
 
 #include <cassert>
+#include <cstring>
 
 // Check sqlite3 library version.
 const static bool sqliteVersionCheck = []() {