Initial QSfera import

Server/vendor/github.com/lestrrat-go/jwx/v3/jwt/io.go

@@ -0,0 +1,42 @@
+// Code generated by tools/cmd/genreadfile/main.go. DO NOT EDIT.
+
+package jwt
+
+import (
+	"fmt"
+	"io/fs"
+	"os"
+)
+
+type sysFS struct{}
+
+func (sysFS) Open(path string) (fs.File, error) {
+	return os.Open(path)
+}
+
+func ReadFile(path string, options ...ReadFileOption) (Token, error) {
+	var parseOptions []ParseOption
+	for _, option := range options {
+		if po, ok := option.(ParseOption); ok {
+			parseOptions = append(parseOptions, po)
+		}
+	}
+
+	var srcFS fs.FS = sysFS{}
+	for _, option := range options {
+		switch option.Ident() {
+		case identFS{}:
+			if err := option.Value(&srcFS); err != nil {
+				return nil, fmt.Errorf("failed to set fs.FS: %w", err)
+			}
+		}
+	}
+
+	f, err := srcFS.Open(path)
+	if err != nil {
+		return nil, err
+	}
+
+	defer f.Close()
+	return ParseReader(f, parseOptions...)
+}