refactor: js plugin api

parsers/js/plugin.go

@@ -0,0 +1,23 @@
+package js
+
+import "github.com/blang/semver"
+
+var (
+	LatestParserVersion  = semver.MustParse("1.0.0")
+	MinimumParserVersion = semver.MustParse("1.0.0")
+)
+
+type PluginMeta struct {
+	Name        string `json:"name"`
+	Version     string `json:"version"` // [TODO] 分版本解析, 但是我们现在只有 v1 所以先不写
+	Description string `json:"description"`
+	Author      string `json:"author"`
+}
+
+type ParserMethod uint
+
+const (
+	_ ParserMethod = iota
+	ParserMethodCanHandle
+	ParserMethodParse
+)