adding backend project

will try to do rest & websocket api with http4s

backend/src/main/scala/industries/sunshine/planningpoker/App.scala

@@ -0,0 +1,32 @@
+package industries.sunshine.planningpoker
+
+import cats.effect._
+import cats.syntax.all._
+import org.http4s._, org.http4s.dsl.io._, org.http4s.implicits._
+import com.comcast.ip4s._
+import org.http4s.HttpRoutes
+import org.http4s.dsl.io._
+import org.http4s.implicits._
+import org.http4s.ember.server._
+
+object App extends IOApp.Simple {
+
+  val service = HttpRoutes
+    .of[IO] { case _ =>
+      Ok("hello")
+    }
+    .orNotFound
+
+  override def run: IO[Unit] = {
+    val a = 1
+    IO.println(s"Hello, World! $a") >>
+      EmberServerBuilder
+        .default[IO]
+        .withHost(ipv4"0.0.0.0")
+        .withPort(port"8080")
+        .withHttpApp(service)
+        .build
+        .use(_ => IO.never)
+        .as(ExitCode.Success)
+  }
+}