title: How do I make Graphql Code Generator for typescript make its enums into pascal case instead of snake case?
body: <p>Currently, the enums that Graphql Code Generator produces looks like this</p>
  <pre><code>export enum Test_Type {
      Test: 'TEST',
  }
  </code></pre>
  <p>however I want the generated enums to be in pascal case like this:</p>
  <pre><code>export enum TestType {
    Test: 'TEST',
  }
  </code></pre>
  <p>Edit, my codegen.yml:</p>
  <pre><code>overwrite: true
  generates:
    src/graphql/generated/graphql.ts:
      schema: ${API_ENDPOINT}
      documents: ['src/graphql/**/*.graphql', 'src/graphql/**/*.gql']
      plugins:
        - 'typescript'
        - 'typescript-operations'
        - 'typescript-react-apollo'
    ./graphql.schema.json:
      schema: ${API_ENDPOINT}
      plugins:
        - 'introspection'
  hooks:
    afterAllFileWrite:
      - prettier --write
  </code></pre>
  <p>The schema for the enum is</p>
  <pre><code>enum TEST_TYPE {
      TEST
  }
  </code></pre>