Configure implement interface quick fix quote type

[mjbvz]

From microsoft/vscode#33476

TypeScript Version: 2.5.1

Code

interface IFoo {
    bar(): number;
}

class Foo implements IFoo {
    
}

Trigger the implement interface quick fix on class Foo

Expected behavior:
Users can configure if single or double quotes are used for the Method not implemented error

Actual behavior:
Double quotes are always used for the Method not implemented error

interface IFoo {
    bar(): number;
}

class Foo implements IFoo {
    bar(): number {
        throw new Error("Method not implemented.");
    }

}

Related to #13270

[ghost]

@rbuckton did something similar in #17750 -- should we generalize this to looking at all StringLiteral nodes in a file to determine what quote style is preferred?

[mhegazy]

I would say add a config option for users to choose quote type. in absence of that we can use @rbuckton's inference for imports still.

[mjbvz]

Yes I think it makes more sense to have an option in this case. VSCode uses both styles of quotes in its source for example, but only uses double quotes for UI strings