Add composer.json

[dosten]

This PR fixes #163

[dosten]

@salcode all changes have been done

[salcode]

@dosten This looks great 👍 .

I would like to merge this as a single commit and I can rebase it before I merge but I've found this results in the PR not being marked as merged, which I'm concerned won't give you #Hacktober credit.

Additionally, looking at this PR, it was opened before October so I'm not sure it will count either.

If you don't care about the #Hacktober credit, I'll rebase and merge into the project.

Otherwise, if you want to make sure you get credit. I would:

• close this PR
• combine these two commits into one (you can use rebase -i HEAD~2 to get started)
• open a new PR

Thanks again for this contribution.

[dosten]

Closed in favour of #166