[composer] Add composer.jsons for all components so they can be subtree-split
[composer] Add composer.jsons for all components so they can be subtree-split

naroga/http,bileto/http,icambridge-old/react-http,iNiSiRe/http,clue-labs/http,WyriHaximus/http,greevex/http,reactphp/http,matthew-james/http