feat: json output formatter

core/output/json.go

@@ -0,0 +1,15 @@
+package output
+
+import (
+	"bytes"
+	"encoding/json"
+	"io"
+)
+
+type JsonFormatter struct{}
+
+func (f *JsonFormatter) Format(object any) (io.Reader, error) {
+	var buffer = make([]byte, 0, 1024)
+	outputBuffer := bytes.NewBuffer(buffer)
+	return outputBuffer, json.NewEncoder(outputBuffer).Encode(object)
+}