Decommision src_common prior to reintroducing it for files common between eth and plugins

src/network.h

@@ -0,0 +1,12 @@
+#ifndef _NETWORK_H_
+#define _NETWORK_H_
+
+#include <stdint.h>
+#include <stdbool.h>
+
+const char *get_network_name_from_chain_id(const uint64_t *chain_id);
+const char *get_network_ticker_from_chain_id(const uint64_t *chain_id);
+
+bool chain_is_ethereum_compatible(const uint64_t *chain_id);
+
+#endif  // _NETWORK_H_