add examples from lectures

lecture-03/Haskell/Sem.hs

lecture-03/Haskell/Simple1

lecture-03/Haskell/Simple1.hi

lecture-03/Haskell/Simple1.hs

lecture-03/Haskell/Simple1.o

lecture-03/Haskell/Synchronized.hs

lecture-03/Scala/Future.scala

lecture-03/Scala/README.md

lecture-03/Scala/Robots1.scala

lecture-03/Scala/Robots2.scala

lecture-03/Scala/Try.scala

lecture-03/Scala/build.sbt

lecture-03/Scala/project/build.properties

lecture-04/Scala/Counter.scala

lecture-04/Scala/build.sbt

lecture-04/Scala/project/build.properties

lecture-05/Bank.hs

lecture-05/BinTree.hs

lecture-05/BinTree.scala

lecture-05/EditorBetter.hs