Add tasks for all the new languages

Task/Exceptions/Swift/exceptions-1.swift

@@ -0,0 +1,3 @@
+enum MyException : ErrorType {
+  case TerribleException
+}

Task/Exceptions/Swift/exceptions-2.swift

@@ -0,0 +1,3 @@
+func foo() throws {
+  throw MyException.TerribleException
+}

Task/Exceptions/Swift/exceptions-3.swift

@@ -0,0 +1,7 @@
+do {
+  try foo()
+} catch MyException.TerribleException { // this can be any pattern
+  //Catch a specific case of exception
+} catch {
+  //Catch any exception
+}