expose ColumnDescriptor.getTypeName()

[gavinking]

See discussion here: hibernate/hibernate-reactive#903 (comment)

[tsegismont]

@gavinking this would be fixed in Vert.x 4.2. If it's a blocker, we could consider backporting #1024 to the 4.1 branch.

[gavinking]

I don't believe it's a blocker, more like a convenience. Right, @gbadner

[gbadner]

@gavinking, yes that is correct.