Changes

• Add experimental support for IOS (#53)
• Improve select syntax for postgrest (#87)
  You can now restrict the columns you want to receive using the Columns value class:

  //user class
  @Serializable
  data class User(val id: String, val name: String)
  
  client.postgrest["table"].select(Columns.list(columns)).decodeSingle<User>()
  //or
  client.postgrest["table"].select(Columns.list("id", "name")).decodeSingle<User>()
  //or
  client.postgrest["table"].select(Columns.type<User>()).decodeSingle<User>() //uses the class properties serial names as column restriction
  //defaults to Columns.ALL
  client.postgrest["table"].select().decodeSingle<User>()

• Improve exceptions
• Make Identity#lastSignInAt optional

Depdendency updates

• Update Kotlin to 1.8.20
• Update apollo-kotlin to 3.8.0
• Update atomicfu to 0.20.1
• Update androidx lifecycle to 2.6.1