Added ManipulateExampleTest
Added ManipulateExercisesCheckboxTest
Added ManipulateExercisesCommentsTest
Added ManipulateExercisesSelectRadio2Test
Added ManipulateExercisesSubmitFileTest
Added ManipulateExercisesSubmitFormTest
Added ManipulatetExampleMultiSelectTest
Added ManipulateWhatHappensIfTest
Added ManipulationFirstTryExampleTest
Added SendKeysExamplesTest