Improved build system

Added new entries to .gitignore
Moved away from source directory as central spot for all source code

CoreLib/Memory.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <stddef.h>
+#include <stdint.h>
+
+void* memset (void* ptr, int value, size_t num);
+
+int memcmp( const void* ptr1, const void* ptr2, size_t num);
+
+size_t strlen(const char* str);
+
+int strncmp ( const char* str1, const char* str2, size_t num );