restructured the project to comply community guideline, for others check release note

internal/watcher/watcher.go

@@ -0,0 +1,14 @@
+package watcher
+
+import (
+	"context"
+
+	E "github.com/yusing/go-proxy/internal/error"
+	"github.com/yusing/go-proxy/internal/watcher/events"
+)
+
+type Event = events.Event
+
+type Watcher interface {
+	Events(ctx context.Context) (<-chan Event, <-chan E.NestedError)
+}