[Example Plugin] Updated the example plugin

- It's now linking with libc/libutils/libdynamiclibs
- moved the main.c into the a "src" folder

[Loader]- Added DCFlushRange and DCInvalidateRange
- Improved logging.

Finally we can load the plugin from the sdcard and call it's function!

example_plugin/src/main.c

@@ -0,0 +1,31 @@
+#include <wups.h>
+#include <malloc.h>
+#include <string.h>
+#include "dynamic_libs/os_functions.h"
+#include "dynamic_libs/socket_functions.h"
+#include "utils/logger.h"
+
+
+WUPS_MODULE_NAME("test module");
+WUPS_MODULE_VERSION("v1.0");
+WUPS_MODULE_AUTHOR("Maschell");
+WUPS_MODULE_LICENSE("BSD");
+
+int func(void);
+
+
+static int my_func2(void)
+{
+   InitOSFunctionPointers();
+   InitSocketFunctionPointers();
+   
+   log_init();
+
+   //log_printf is not working.
+   log_print("Logging from custom function.\n");
+
+   return 43;
+}
+
+
+WUPS_MUST_REPLACE(func,WUPS_LOADER_LIBRARY_GX2, my_func2);