Sequenced Collections support

[Speiger]

Like @Nightenom already pointed out in FastUtil that sequenced collections are a thing, I will have to look into implementing them.

Though the main issue of sequenced collections are that they are sloppy implemented and request functionality that should be in sorted implementations and make 0 sense in a sequenced collection.

But yeah the following things should be done.

• Sequenced Collection should be supported where it makes sense (Lists mainly)
• Sequenced Set should be supported where it is applicable (basically OrderedSet should extend it)
• Sequenced Map should be supported where it is applicable (basically OrderedMap should extend it)
• Make Primitive Compatible functions where applicable though there won't be a primitive SequencedCollection because OrderedCollection already exists.

Sorry for the Ping night but i just wanted to make you aware of this project.