Add ExerciceResultsFile type

types/Dojo/ExerciceResultsFile.ts

+interface ExerciceResultsFile {
+    success: boolean;
+
+    successfulTests?: number;
+    failedTests?: number;
+
+    successfulTestsList?: Array<string>;
+    failedTestsList?: Array<string>;
+}
+
+
+export default ExerciceResultsFile;
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