[FlightSQL] [Go] Starting a FlightSQL client for Go

[Jacob Marble]

(cc Matt Topol aka zeroshade)

Good morning,

I plan to start working on the FlightSQL client for Golang. My first task
is to implement DenseUnion, as it is missing from the Golang Arrow library.

Any concerns?

-- 
Jacob Marble
🇺🇸 🇺🇦