v0.7.0

• BREAKING CHANGES: require node versions that support ESM

  @bare-ts/tools requires now a node versions that support
  ECMAScript Modules.

  Note that, @bare-ts/tools still exports a CommonJS build.

• Add pure annotation in generated code

  Pure annotations enables to bundler to detect pure function calls.
  @bare-ts/tools adds now these annotations in top-level function calls.

• Allow circular references where possible

  @bare-ts/tools was previously conservative about circular references.
  It now allows all circular references that can encode at least one
  finite message. The following circular references are now allowed:

  type A list<A>
  type B map<str><B>
  type C list<optional<C>>[2]
  type D list<union { D | str }>[2]
  type E optional<E>
  type F union { F | str }
  

  The following circular references are still rejected:

  type X list<A>[2]
  type Y union { Y }
  type Z struct { field: Z }