move UPID to pbs-api-types, add UPIDExt

pbs-server side related methods are added via the UPIDExt
trait

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

pbs-api-types/src/lib.rs

@@ -36,6 +36,8 @@ pub use userid::{Tokenname, TokennameRef};
 pub use userid::{Username, UsernameRef};
 pub use userid::{PROXMOX_GROUP_ID_SCHEMA, PROXMOX_TOKEN_ID_SCHEMA, PROXMOX_TOKEN_NAME_SCHEMA};
 
+pub mod upid;
+
 const_regex! {
     pub BACKUP_TYPE_REGEX = concat!(r"^(", BACKUP_TYPE_RE!(), r")$");