FS2Connector - new connector

[adrianfilip]

#Steps

• Add a new project
  -- Example:

  zio-connect/build.sbt

  Line 38 in 2507925

  lazy val fileConnector = project

• Create the following directory structure

     zio.connect.fs2
  

• Create the connector

   sealed trait FS2Connector
   
   case class LiveFS2Connector() extends FS2Connector { ... }
   
   object LiveFS2Connector {
       val layer: ZLayer[???, ???, FS2Connector] = {
           ...
           LiveFS2Connector()
       }
  
   }
  

• Provide accessors in the package object
  Example: https://github.com/zio/zio-connect/blob/master/connectors/file-connector/src/main/scala/zio/connect/file/package.scala

• Tests belong in the FS2ConnectorSpec file.
  They use the accessors.
  Example:- https://github.com/zio/zio-connect/blob/master/connectors/file-connector/src/test/scala/zio/connect/file/FileConnectorSpec.scala

• There will be a LiveFS2ConnectorSpec that runs the CassandraConnectorSpec files for the LiveCassandraConnector layer
  Example with testcontainers and S3 here - https://github.com/zio/zio-connect/pull/83/files#diff-e7e0899e455a741a644a05c0b26879d176a9126951477cd7c62dc19ade98b5cc

• Provide a TestFS2Connector layer that allows testing with a stub.
  Example - https://github.com/zio/zio-connect/blob/master/connectors/file-connector/src/main/scala/zio/connect/file/TestFileConnector.scala

[grouzen]

I would like to work on this one.

[adrianfilip]

🙏

[adrianfilip]

Added a few guidelines.

[grouzen]

@adrianfilip Hey! Could you please describe what kind of functionality we want to have for this connector?
In my current understanding, it is really two basic methods: fromStream and toStream (the naming could be different, of course).

[adrianfilip]

@grouzen I think that covers the main use cases and would be enough for a first release.

[grouzen]

@adrianfilip It is ready for review: #101