FileUtils, some typos fixes

src/Errors.cpp

@@ -0,0 +1,25 @@
+#include "Errors.h"
+
+static const char *str_info = "Info";
+static const char *str_warn = "Warn";
+static const char *str_error = "Error";
+static const char *str_unknown = "Unknown";
+
+String getErrorLevelStr(ErrorLevel_t level) {
+    const char *ptr;
+    switch (level) {
+        case EL_INFO:
+            ptr = str_info;
+            break;
+        case EL_WARNING:
+            ptr = str_warn;
+            break;
+        case EL_ERROR:
+            ptr = str_error;
+            break;
+        default:
+            ptr = str_unknown;
+            break;
+    }
+    return String(ptr);
+}