feat: add web context and add go net/http web context

ctx/go-http-context/request-storage.go

@@ -0,0 +1,30 @@
+package go_http_context
+
+import (
+	"context"
+	"net/http"
+)
+
+type HttpReqStorage struct {
+	source context.Context
+}
+
+func NewReqStorage(req *http.Request) *HttpReqStorage {
+	return &HttpReqStorage{source: req.Context()}
+}
+
+func (r HttpReqStorage) Source() interface{} {
+	return r.source
+}
+
+func (r HttpReqStorage) Get(key string) interface{} {
+	return r.source.Value(key)
+}
+
+func (r HttpReqStorage) Set(key string, value string) {
+	r.source = context.WithValue(r.source, key, value)
+}
+
+func (r HttpReqStorage) Delete(key string) {
+	r.source = context.WithValue(r.source, key, nil)
+}