Add tasks for all the new languages

Task/Variable-size-Get/Swift/variable-size-get-1.swift

@@ -0,0 +1 @@
+sizeofValue(x)

Task/Variable-size-Get/Swift/variable-size-get-2.swift

@@ -0,0 +1,9 @@
+// sizeof and sizeofValue return the size in bytes.
+println(sizeof(Int))
+var i: Int = 42
+println(sizeofValue(i))
+// The size returned is that of the top level value and does not
+// include any referenced data.  A type like String always returns
+// the same number, the size of the String struct.
+println(sizeofValue("Rosetta"))
+println(sizeofValue("Code"))}