appmgr: mod.rs v0_2_8 current

appmgr/src/version/v0_2_8.rs

@@ -0,0 +1,22 @@
+use super::*;
+use crate::util::Invoke;
+
+const V0_2_8: emver::Version = emver::Version::new(0, 2, 8, 0);
+
+pub struct Version;
+#[async_trait]
+impl VersionT for Version {
+    type Previous = v0_2_8::Version;
+    fn new() -> Self {
+        Version
+    }
+    fn semver(&self) -> &'static emver::Version {
+        &V0_2_4
+    }
+    async fn up(&self) -> Result<(), Error> {
+        Ok(())
+    }
+    async fn down(&self) -> Result<(), Error> {
+        Ok(())
+    }
+}