Add endpoint to show more contract info

[tdroxler]

from our contracts table, we could show the info store there for a given contract:

                           Table "public.contracts"
          Column          |       Type        | Collation | Nullable | Default 
--------------------------+-------------------+-----------+----------+---------
 contract                 | character varying |           | not null | 
 parent                   | character varying |           |          | 
 creation_block_hash      | bytea             |           | not null | 
 creation_tx_hash         | bytea             |           | not null | 
 creation_timestamp       | bigint            |           | not null | 
 creation_event_order     | integer           |           | not null | 
 destruction_block_hash   | bytea             |           |          | 
 destruction_tx_hash      | bytea             |           |          | 
 destruction_timestamp    | bigint            |           |          | 
 destruction_event_order  | integer           |           |          | 
 std_interface_id_guessed | bytea             |           |          | 
 interface_id             | character varying |           |          | 
 category                 | character varying |           |          |