Fixing Caliban integration & adding quill-caliban to build

[deusaquilus]

Caliban productArgs were not properly being handled, they were only being passed in on the top level.
Also, in flattenToPairs, strings had ""ExtraQuotes"" around them.
Also added tests for many more cases with nested data.

Note that unless the Caliban schema is correctly matched to the output data, Circe deserialization will cause NPEs.
For example when the graphQL query:

{
  personAddressNested(id: 1) {
    id
    age
    name {
      first
      last
    }
  }
}

And the following schema & query:

case class Name(first: String, last: String)
case class PersonT(id: Int, name: Name, age: Int)
case class AddressT(ownerId: Int, street: String)
case class PersonAddressNested(id: Int, name: Name, age: Int, street: Option[String])

query[PersonT].leftJoin(query[AddressT]).on((p, a) => p.id == a.ownerId)
  .map((p, a) => PersonAddressNested(p.id, p.name, p.age, a.map(_.street)))
  .filterByKeys(filters)
  .filterColumns(columns)
  .take(10)

If the caliban integration messes up and does not pass any of the columns: List("id", "age", "first", "last") into the columns variable being passed to the query.... let's say the last two columns are missing: columns:List("id", "age") then the resulting data will look like:

List(
PersonAddressNested(1, Name(null, null), 44)
)

Instead of:

List(
PersonAddressNested(1, Name("One", "A"), 44)
)

Circe will cause an NPE during deserialization. On the caliban side it will look like this:

java.lang.NullPointerException:
  at caliban.Value$StringValue.toString(Value.scala:74)
  at caliban.ResponseValue$ObjectValue.toString$$anonfun$1(Value.scala:39)
  at scala.collection.immutable.List.map(List.scala:246)
  at caliban.ResponseValue$ObjectValue.toString(Value.scala:39)

If you are running it from ZIO-Http it will look like this:

[error] Fiber failed.
[error] An unchecked error was produced.
[error] java.lang.NullPointerException
[error]         at io.circe.Printer$PrintingFolder.onString(Printer.scala:309)
[error]         at io.circe.Printer$PrintingFolder.onString(Printer.scala:303)
[error]         at io.circe.Json$JString.foldWith(Json.scala:364)
[error]         at io.circe.JsonObject$LinkedHashMapJsonObject.appendToFolder(JsonObject.scala:343)
[error]         at io.circe.Printer$PrintingFolder.onObject(Printer.scala:359)
[error]         at io.circe.Printer$PrintingFolder.onObject(Printer.scala:359)
[error]         at io.circe.Json$JObject.foldWith(Json.scala:426)
[error]         at io.circe.JsonObject$LinkedHashMapJsonObject.appendToFolder(JsonObject.scala:343)
[error]         at io.circe.Printer$PrintingFolder.onObject(Printer.scala:359)
[error]         at io.circe.Printer$PrintingFolder.onObject(Printer.scala:359)
[error]         at io.circe.Json$JObject.foldWith(Json.scala:426)
[error]         at io.circe.Printer$PrintingFolder.onArray(Printer.scala:345)
[error]         at io.circe.Printer$PrintingFolder.onArray(Printer.scala:335)
[error]         at io.circe.Json$JArray.foldWith(Json.scala:395)
[error]         at io.circe.JsonObject$LinkedHashMapJsonObject.appendToFolder(JsonObject.scala:343)
[error]         at io.circe.Printer$PrintingFolder.onObject(Printer.scala:359)
[error]         at io.circe.Printer$PrintingFolder.onObject(Printer.scala:359)
[error]         at io.circe.Json$JObject.foldWith(Json.scala:426)
[error]         at io.circe.JsonObject$LinkedHashMapJsonObject.appendToFolder(JsonObject.scala:343)
[error]         at io.circe.Printer$PrintingFolder.onObject(Printer.scala:359)
[error]         at io.circe.Printer$PrintingFolder.onObject(Printer.scala:359)
[error]         at io.circe.Json$JObject.foldWith(Json.scala:426)
[error]         at io.circe.Printer.print(Printer.scala:194)
[error]         at io.circe.Json.spaces2(Json.scala:122)
[error]         at io.circe.Json.toString(Json.scala:215)
[error]         at caliban.ZHttpAdapter$.caliban$ZHttpAdapter$$anon$2$$_$applyOrElse$$anonfun$2$$anonfun$1(ZHttpAdapter.scala:107)
[error]         at zio.ZIO$MapFn.apply(ZIO.scala:4438)