Add PhysFS 2.0.3.

libs/physfs-2.0.3/lzma/C/Archive/7z/7zAlloc.h

@@ -0,0 +1,20 @@
+/* 7zAlloc.h */
+
+#ifndef __7Z_ALLOC_H
+#define __7Z_ALLOC_H
+
+#include <stddef.h>
+
+typedef struct _ISzAlloc
+{
+  void *(*Alloc)(size_t size);
+  void (*Free)(void *address); /* address can be 0 */
+} ISzAlloc;
+
+void *SzAlloc(size_t size);
+void SzFree(void *address);
+
+void *SzAllocTemp(size_t size);
+void SzFreeTemp(void *address);
+
+#endif