v2 is compiling now

Signed-off-by: Vishal Rana <vr@labstack.com>

engine/engine.go

@@ -0,0 +1,59 @@
+package engine
+
+import "io"
+
+type (
+	Type uint8
+
+	HandlerFunc func(Request, Response)
+
+	Engine interface {
+		Start()
+	}
+
+	Request interface {
+		Header() Header
+		// Proto() string
+		// ProtoMajor() int
+		// ProtoMinor() int
+		RemoteAddress() string
+		Method() string
+		URI() string
+		URL() URL
+		Body() io.ReadCloser
+		FormValue(string) string
+	}
+
+	Response interface {
+		Header() Header
+		WriteHeader(int)
+		Write(b []byte) (int, error)
+		Status() int
+		Size() int64
+		Committed() bool
+	}
+
+	Header interface {
+		Add(string, string)
+		Del(string)
+		Get(string) string
+		Set(string, string)
+	}
+
+	URL interface {
+		Scheme() string
+		SetPath(string)
+		Path() string
+		Host() string
+		QueryValue(string) string
+	}
+
+	Config struct {
+		Address string
+	}
+)
+
+const (
+	Standard Type = iota
+	FastHTTP
+)