Package static assets inside the query-service binary

[yurishkuro]

Currently we copy static assets directory to the docker image separately and point the query service to it using cli switch.

Some people swear by https://github.com/jteeuwen/go-bindata or its extension https://github.com/elazarl/go-bindata-assetfs.

This will be especially useful if we support non-Docker packaging (#426).

[pavolloffay]

Here is a nice list of alternatives https://github.com/shurcooL/vfsgen#alternatives

I plan to use one for hotrod to fix #694 (comment)

[eundoosong]

This feature looks interesting and I found hotrod already merged with go-bindata-assetfs (#702)
I'll have a look for contribution. (would be good start of contribution as a beginner in jaeger backend :) )

Update: I'm working on this issue( WIP branch : https://github.com/eundoosong/jaeger/blob/aa0576d67223c07ba6008ba3563ed30dab3aa333/cmd/query/app/static_handler.go )
'll PR soon.