Adds more hosts to test

- Ptbo both links
 - Lnsy both links
 - Blvl both links
Adds lib.rs to allow bins to read common code

src/lib.rs

@@ -0,0 +1,9 @@
+pub mod manager;
+pub mod ping_request;
+pub mod ping_result;
+pub mod state;
+pub mod target_state;
+
+
+pub const SECONDS_BETWEEN_DISPLAY: u32 = 1;
+pub const SECONDS_BETWEEN_PING: u32 = 2;