Change Java.toJavaArray() and Java.toJavaScriptArray() to Java.to() and Java.from()

By popular demand, Java interop APIs Java.toJavaArray() and Java.toJavaScriptArray() will be renamed to Java.to() and Java.from(), respectively. Additionally, Java.toJavaArray() took an array component type, but since Java.to() is not necessarily restricted to arrays, we now need to pass the array type, so what was earlier

Java.toJavaArray([1,2,3], "int")

must now be

Java.to([1,2,3], "int[]")