feat: add ftp driver

drivers/ftp/meta.go

@@ -0,0 +1,32 @@
+package ftp
+
+import (
+	"github.com/alist-org/alist/v3/internal/driver"
+	"github.com/alist-org/alist/v3/internal/op"
+)
+
+type Addition struct {
+	Address  string `json:"address" required:"true"`
+	Username string `json:"username" required:"true"`
+	Password string `json:"password" required:"true"`
+	driver.RootFolderPath
+}
+
+var config = driver.Config{
+	Name:        "FTP",
+	LocalSort:   false,
+	OnlyLocal:   false,
+	OnlyProxy:   false,
+	NoCache:     false,
+	NoUpload:    false,
+	NeedMs:      false,
+	DefaultRoot: "root, / or other",
+}
+
+func New() driver.Driver {
+	return &FTP{}
+}
+
+func init() {
+	op.RegisterDriver(config, New)
+}