Add kzg trusted setup file cli param and load into beacon chain

beacon_node/client/src/config.rs

@@ -68,6 +68,7 @@ pub struct Config {
     pub chain: beacon_chain::ChainConfig,
     pub eth1: eth1::Config,
     pub execution_layer: Option<execution_layer::Config>,
+    pub trusted_setup_file: Option<PathBuf>,
     pub http_api: http_api::Config,
     pub http_metrics: http_metrics::Config,
     pub monitoring_api: Option<monitoring_api::Config>,
@@ -90,6 +91,7 @@ impl Default for Config {
             sync_eth1_chain: false,
             eth1: <_>::default(),
             execution_layer: None,
+            trusted_setup_file: None,
             graffiti: Graffiti::default(),
             http_api: <_>::default(),
             http_metrics: <_>::default(),