Add a route to get the list of supported platforms for OTA

central_backend/src/ota/mod.rs

@@ -0,0 +1 @@
+pub mod ota_update;

central_backend/src/ota/ota_update.rs

@@ -0,0 +1,5 @@
+#[derive(serde::Serialize, serde::Deserialize, Debug, Copy, Clone, Eq, PartialEq)]
+pub enum OTAPlatform {
+    #[serde(rename = "Wt32-Eth01")]
+    Wt32Eth01,
+}