Bill Forry, Editor On Tuesday, a multi-year campaign to get parts of Fields Corner designated as an official cultural district dubbed “Little Saigon” won final approval from the state-funded Mass Cultural Council. The vote by the council’s governing body was unanimous and followed words of support from the Boston City Council, former Mayor Walsh and current Mayor Kim Janey, along with many supporters from the Vietnamese community here in Dorchester and beyond. The proposal got additional support on Tuesday from state Sen. Nick Collins, Rep. Dan Hunt and City Councillors Frank Baker and Michelle Wu. So, what does this approval mean? Is Fields Corner now supposed to be called Little Saigon? Not at all, say proponents of the idea.