Added filesystem module, tests and implementation for it in emulator.

discovery/src/ll_filesystem.c

@@ -0,0 +1,38 @@
+#include "ll_filesystem.h"
+#include <stdio.h>
+
+bool ll_filesystem_init() {
+	return false;
+}
+
+DIRECTORY_STRUCT* ll_filesystem_dir_open(const char* path) {
+	return NULL;
+}
+
+void ll_filesystem_dir_close(DIRECTORY_STRUCT* dir) {
+	
+
+}
+
+FILE_HANDLE* ll_filesystem_file_open(const char* filename) {
+	return NULL;	
+}
+
+void ll_filesystem_file_close(FILE_HANDLE* handle) {
+	
+}
+
+FILE_STATUS ll_filesystem_file_seek(FILE_HANDLE* handle, uint32_t offset) {
+	return F_DISKERROR;
+}
+
+FILE_STATUS ll_filesystem_file_read(FILE_HANDLE* handle, uint8_t* buf, uint32_t size) {
+	return F_DISKERROR;
+}
+
+FILE_STATUS ll_filesystem_file_write(FILE_HANDLE* handle, uint8_t* buf, uint32_t size) {
+	return F_DISKERROR;
+}
+                                                                                                                                                                               
+
+