feat: Checkpoints relayer

Cargo.toml

@@ -34,6 +34,7 @@ bridging_payment = { path = "gear-programs/bridging-payment" }
 gear_proof_storage = { path = "gear-programs/proof-storage" }
 checkpoint_light_client-io = { path = "gear-programs/checkpoint-light-client/io", default-features = false }
 utils-prometheus = { path = "utils-prometheus" }
+checkpoint_light_client = { path = "gear-programs/checkpoint-light-client", default-features = false }
 
 plonky2 = { git = "https://github.com/gear-tech/plonky2.git", rev = "4a620f4d79efe9233d0e7682df5a2fc625b5420e" }
 plonky2_field = { git = "https://github.com/gear-tech/plonky2.git", rev = "4a620f4d79efe9233d0e7682df5a2fc625b5420e" }

ethereum-common/src/utils.rs

@@ -9,6 +9,10 @@ pub fn calculate_period(slot: u64) -> u64 {
     calculate_epoch(slot) / EPOCHS_PER_SYNC_COMMITTEE
 }
 
+pub fn calculate_slot(period: u64) -> u64 {
+    period * SLOTS_PER_EPOCH * EPOCHS_PER_SYNC_COMMITTEE
+}
+
 pub fn decode_hex_bytes<'de, D>(deserializer: D) -> Result<Vec<u8>, D::Error>
 where
     D: serde::Deserializer<'de>,

gear-programs/checkpoint-light-client/src/lib.rs

@@ -15,6 +15,3 @@ use gstd::{Box, Vec};
 
 #[cfg(not(feature = "std"))]
 mod wasm;
-
-#[cfg(test)]
-mod tests;