Include more details in the error message returned by get_table_rows

It is useful when debugging applications using `antelope.rs` as a dependency to query Antelope nodes.

Author: ptagl

crates/antelope/src/api/v1/chain.rs

@@ -297,7 +297,11 @@ impl<T: Provider> ChainAPI<T> {
 
         let response = match result.await {
             Ok(response) => response,
-            Err(_) => return Err(ClientError::NETWORK("Failed to get table rows".into())),
+            Err(error) => {
+                return Err(ClientError::NETWORK(
+                    format!("Failed to get table rows, reason: {}", error).into(),
+                ))
+            }
         };
         let json: Value = serde_json::from_str(response.as_str()).unwrap();
         let response_obj = JSONObject::new(json);