Feature request: specify configName for input when generating TypeScript types

[whjacobsen]

It would be great if we could specify which configuration file we want to make use of when generating TypeScript types through the cli, e.g.:

"graphql-mesh typescript --input ./src/graphql/devconfigrc.yml --output ./src/graphql/mesh/generated/types.tsx"

That way we could easily switch between e.g. development and production and generate types based on the environment we need types for