Chaged settings build.gradle. Added geb dependencies.
Revert "Chaged settings build.gradle. Added geb dependencies."

This reverts commit faa33a098f9da88066be8294c8d9105042e059b8.
Create new source file. Copy ScreenShotOutputFileTest.groovy and mearge SeleniumSampleTest.groovy.
Refactoring. Convert nethod basicTest() for Geb.