implementing ArrayList more efficient that JDK and using it in our implementations instead of the one on JDK

[mohammadkarbalaee]

let's see how it would be possible and add this great feature to our library

[Hreshi]

Here is the implementation of ArrayList https://hg.openjdk.java.net/jdk8/jdk8/jdk/file/tip/src/share/classes/java/util/ArrayList.java