Add path extractor for extracting variables from urls

outwatch-router/src/main/scala/outwatch/router/Path.scala

@@ -84,6 +84,21 @@ final case class /(parent: Path, child: String) extends Path {
   }
 }
 
+/**
+  * Path separator extractor:
+  * {{{
+  *   Path("/1/2/3/test.json") match {
+  *     case "1" /: "2" /: _ =>  ...
+  * }}}
+  */
+object /: {
+  def unapply(path: Path): Option[(String, Path)] =
+    path.toList match {
+      case head :: tail => Some(head -> Path(tail))
+      case Nil => None
+    }
+}
+
 /**
   * Root extractor:
   * {{{

project/Version.scala

@@ -1,4 +1,4 @@
 object Version{
-  val version = "0.0.1"
+  val version = "0.0.2"
   val scalaVersion = "2.12.8"
 }