Update ipfs-api to version 5.0.0 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

ipfs-api just published its new version 5.0.0, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of ipfs-api – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging :palm_tree:

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GitHub Release

The new interface for add can be found here https://github.com/ipfs/interface-ipfs-core#javascript---ipfsfilesadddata-callback

You can still add files from fs, single or recursively, under the call addFiles.
Adding urls is now under addUrl

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The new version differs by 73 commits .

• 78348b2 chore: release version v5.0.0
• 6333a32 chore: update contributors
• a55fa54 Merge pull request #288 from ipfs/files-add-interface
• b61b3cd add latest interface-ipfs-core
• 6207ad4 fix linting, test with complete interface-core tests
• ee6cfd3 Make ipfs.files.add return wrapped path+node.
• dfdb998 Move "add" tests to interface-ipfs-core.
• 716daca Update 'files' and 'util' command paths.
• c6d77be Add "addFiles" API.
• 1348b45 Add "addUrl" API.
• 7d45b09 Make ipfs.files.add return DAGNodes.
• 689f262 chore: release version v4.1.1
• 55ecbbc chore: update contributors
• a5eff23 Merge pull request #287 from ipfs/update-aegir
• dd28cb6 migrate require raw to readFileSync

There are 73 commits in total. See the full diff.

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