feat(http-headers): dictionary to http readers (#13)

Author: renatoaguimaraes

Sources/YData/Extensions/HTTPHeaders.swift

@@ -0,0 +1,7 @@
+import Vapor
+
+public extension HTTPHeaders {
+  init(_ headers: [String: String]) {
+    self.init(headers.map { ($0, $1) })
+  }
+}