dav: Make reusable for other projects

crates/dav_push/src/prop.rs

@@ -0,0 +1,22 @@
+use rustical_xml::XmlSerialize;
+
+#[derive(Debug, Clone, XmlSerialize, PartialEq)]
+pub enum Transport {
+    #[xml(ns = "rustical_dav::namespace::NS_DAVPUSH")]
+    WebPush,
+}
+
+#[derive(Debug, Clone, XmlSerialize, PartialEq)]
+pub struct Transports {
+    #[xml(flatten, ty = "untagged")]
+    #[xml(ns = "crate::namespace::NS_DAVPUSH")]
+    transports: Vec<Transport>,
+}
+
+impl Default for Transports {
+    fn default() -> Self {
+        Self {
+            transports: vec![Transport::WebPush],
+        }
+    }
+}