No more unsafe eval

[dignifiedquire]

I started moving all deps that still use protobufs to compiled versions using https://github.com/dcodeIO/protobuf.js

• fix: switch to protobuf.js ipfs/js-ipfs-unixfs#18
• fix: switch to protobufjs ipld/js-ipld-dag-pb#39
• fix: switch protobufjs libp2p/js-libp2p-crypto#107

[dignifiedquire]

Once these are merged and published there is no more use of Function.apply in this module.