Added typings for ipfs-http-client and exported dependency packages

[hbarcelos]

Please fill in this template.

• Use a meaningful title for the pull request. Include the name of the package modified.
• Test the change in your own code. (Compile and run.)
• Add or edit tests to reflect the change. (Run with npm test.)
• Follow the advice from the readme.
• Avoid common mistakes.
• Run npm run lint package-name (or tsc if no tslint.json is present).

Select one of these and delete the others:

If adding a new definition:

• The package does not already provide its own types, or cannot have its .d.ts files generated via --declaration
• If this is for an NPM package, match the name. If not, do not conflict with the name of an NPM package.
• Create it with dts-gen --dt, not by basing it on an existing project.
• Represents shape of module/library correctly
• tslint.json should be present and it shouldn't have any additional or disabling of rules. Just content as { "extends": "dtslint/dt.json" }. If for reason the some rule need to be disabled, disable it for that line using // tslint:disable-next-line [ruleName] and not for whole package so that the need for disabling can be reviewed.
• tsconfig.json should have noImplicitAny, noImplicitThis, strictNullChecks, and strictFunctionTypes set to true.

[hbarcelos]

I'm getting the following error when running npm run lint:

Error: Expected compilerOptions["types"] === []
    at Object.<anonymous> (/home/henrique/dev/DefinitelyTyped/node_modules/dtslint/bin/checks.js:72:27)
    at Generator.next (<anonymous>)
    at fulfilled (/home/henrique/dev/DefinitelyTyped/node_modules/dtslint/bin/checks.js:4:58)

What am I supposed to do if one of my modules depends upon types of other modules?

[typescript-bot]

@hbarcelos Thank you for submitting this PR!

Because this is a new definition, a DefinitelyTyped maintainer will be reviewing this PR in the next few days once the Travis CI build passes.

In the meantime, if the build fails or a merge conflict occurs, I'll let you know. Have a nice day!

[typescript-bot]

@hbarcelos The Travis CI build failed! Please review the logs for more information.

Once you've pushed the fixes, the build will automatically re-run. Thanks!

[typescript-bot]

@hbarcelos I haven't seen anything from you in a while and this PR currently has problems that prevent it from being merged. The PR will be closed tomorrow if there aren't new commits to fix the issues.

[typescript-bot]

@hbarcelos To keep things tidy, we have to close PRs that aren't mergeable but don't have activity from their author. No worries, though - please open a new PR if you'd like to continue with this change. Thank you!