Add challenge "Predict the Future" from ethernaut/captureTheEther

[devnet0x]

Add this challenge following steps described in readme.me

[Ayoazeez26]

@devnet0x commenting here so it can be assigned to me

[TAdev0]

hey @Ayoazeez26 are you working on it?

[Ayoazeez26]

Hey @TAdev0 yes I am, I would be opening a PR soon

[manstevo]

Can I work on this, please?

[devnet0x]

sure @manstevo , assigned

[manstevo]

Thanks currently on it

[manstevo]

I wanted to update that I am still working on the project please give me a bit more time