增加部分小程序接口

miniprogram/miniprogram.go

@@ -0,0 +1,17 @@
+package miniprogram
+
+import (
+	"github.com/silenceper/wechat/context"
+)
+
+// MiniProgram struct extends context
+type MiniProgram struct {
+	*context.Context
+}
+
+// NewMiniProgram 实例化小程序接口
+func NewMiniProgram(context *context.Context) *MiniProgram {
+	miniProgram := new(MiniProgram)
+	miniProgram.Context = context
+	return miniProgram
+}