JSON should now be better so that the UI can handle it in task async
handler.

This reverts commit b3fb1a16

It introduced changes which cause issues described in
purescript-gargantext#571

This commits changes the `PhyloData` data structure to
include a proper `GraphData` in the `pd_data` field. The
`GraphData` is almost complete, but the `objects` field needs
to be further refined from a generic JSON `Value` to proper
Haskell types.

This reverts commit a444cb30.

This reverts commit 22b14f56.

This reverts commit d04cf03b, reversing
changes made to e213a4bf.

This commit adds a bunch of Arxiv tests to demonstrate we can
successfully transform our `Query` type into the Arxiv AST.