Exclude imports from graphql-codegen-typescript-react-apollo-template

Is your feature request related to a problem? Please describe. tslint complains about unused imports:

'ReactApollo' is declared but its value is never read.
'React' is declared but its value is never read.
'gql' is declared but its value is never read.

Describe the solution you’d like Have a way through config to exclude these imports.

Describe alternatives you’ve considered using sed or something similar to hack the template’s output

Additional context code in question:

import * as ReactApollo from 'react-apollo';
import * as React from 'react';

import gql from 'graphql-tag';

[kamilkisiela]

I fixed that, will push it in few minutes.

[dotansimha]

@moonray available in 0.13.0.