feat: add fields with logx methods, support using third party logging libs. (#1847)

* backup

* simplify

* chore: remove unused pool

* chore: fix lint errors

* chore: use strings.Builder instead of bytes.Buffer

* test: add more tests

* chore: fix reviewdog

* test: fix data race

* feat: make logger customizable

* chore: fix reviewdog

* test: fix fails

* chore: fix set writer twice

* chore: use context instead of golang.org context

* chore: specify uint32 for level types

core/logx/logwriter.go

@@ -0,0 +1,22 @@
+package logx
+
+import "log"
+
+type logWriter struct {
+	logger *log.Logger
+}
+
+func newLogWriter(logger *log.Logger) logWriter {
+	return logWriter{
+		logger: logger,
+	}
+}
+
+func (lw logWriter) Close() error {
+	return nil
+}
+
+func (lw logWriter) Write(data []byte) (int, error) {
+	lw.logger.Print(string(data))
+	return len(data), nil
+}