Generate index.ts file to expose everything to client handlers

[FreePhoenix888]

Why do we need this

• Better autocompletion. VSCode not always find import symbol in package if exported symbol is not re-exported from entry-point. For example try to import createSerialOperation from deeplinks :)
• Ability to expose everything to client handler ( a little help to Unable to import from specific path in client handler #63 )
  I have imported and logged Deepcase imports in client handler:

  const DeepCase = await deep.import('@deep-foundation/deepcase');
  console.log("My"+"Log", {DeepCase})  

and now there is a lot of thing to use!