feat: Waku v2 bridge

Issue #12610

vendor/github.com/pion/interceptor/errors.go

@@ -0,0 +1,51 @@
+package interceptor
+
+import (
+	"errors"
+	"strings"
+)
+
+func flattenErrs(errs []error) error {
+	errs2 := []error{}
+	for _, e := range errs {
+		if e != nil {
+			errs2 = append(errs2, e)
+		}
+	}
+	if len(errs2) == 0 {
+		return nil
+	}
+	return multiError(errs2)
+}
+
+type multiError []error
+
+func (me multiError) Error() string {
+	var errstrings []string
+
+	for _, err := range me {
+		if err != nil {
+			errstrings = append(errstrings, err.Error())
+		}
+	}
+
+	if len(errstrings) == 0 {
+		return "multiError must contain multiple error but is empty"
+	}
+
+	return strings.Join(errstrings, "\n")
+}
+
+func (me multiError) Is(err error) bool {
+	for _, e := range me {
+		if errors.Is(e, err) {
+			return true
+		}
+		if me2, ok := e.(multiError); ok {
+			if me2.Is(err) {
+				return true
+			}
+		}
+	}
+	return false
+}