Add metadata SQL test

tests/sql/metadata.sql

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+---------------------------------------------------------------------------
+-- Listing
+--
+
+-- List current database
+select current_database();
+
+-- connect to the DB
+\c signalk
+
+-- output display format
+\x on
+
+SELECT v.vessel_id as "vessel_id" FROM auth.vessels v WHERE v.owner_email = 'demo+kapla@openplotter.cloud' \gset
+--\echo :"vessel_id"
+SELECT set_config('vessel.id', :'vessel_id', false) IS NOT NULL as vessel_id;
+
+--SELECT * FROM api.metadata m;
+\echo 'api.metadata details'
+SELECT m.id, m.name, m.mmsi, m.length, m.beam, m.height, m.ship_type, m.plugin_version, m.signalk_version, m.time IS NOT NULL AS time, m.active, configuration, available_keys FROM api.metadata AS m ORDER BY m.name ASC;
+
+\echo 'api.metadata get configuration'
+select configuration from api.metadata WHERE vessel_id = current_setting('vessel.id', false);
+
+\echo 'api.metadata update configuration'
+UPDATE api.metadata SET configuration = '{ "depthKey": "environment.depth.belowTransducer" }' WHERE vessel_id = current_setting('vessel.id', false);
+
+\echo 'api.metadata get configuration with new value'
+select configuration->'depthKey' AS depthKey, configuration->'update_at' IS NOT NULL AS update_at from api.metadata WHERE vessel_id = current_setting('vessel.id', false);
+
+\echo 'api.metadata get configuration base on update_at value'
+select configuration->'depthKey' AS depthKey, configuration->'update_at' IS NOT NULL AS update_at from api.metadata WHERE vessel_id = current_setting('vessel.id', false) AND configuration->>'update_at' = to_char(NOW(), 'YYYY-MM-DD"T"HH24:MI:SS"Z"');

tests/sql/metadata.sql.output

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+ current_database 
+------------------
+ signalk
+(1 row)
+
+You are now connected to database "signalk" as user "username".
+Expanded display is on.
+-[ RECORD 1 ]
+vessel_id | t
+
+api.metadata details
+-[ RECORD 1 ]---+----------------
+id              | 2
+name            | aava
+mmsi            | 787654321
+length          | 12
+beam            | 10
+height          | 24
+ship_type       | 37
+plugin_version  | 1.0.2
+signalk_version | 1.20.0
+time            | t
+active          | t
+configuration   | 
+available_keys  | []
+-[ RECORD 2 ]---+----------------
+id              | 1
+name            | kapla
+mmsi            | 123456789
+length          | 12
+beam            | 10
+height          | 24
+ship_type       | 36
+plugin_version  | 0.0.1
+signalk_version | signalk_version
+time            | t
+active          | t
+configuration   | 
+available_keys  | 
+
+api.metadata get configuration
+-[ RECORD 1 ]-+-
+configuration | 
+
+api.metadata update configuration
+UPDATE 1
+api.metadata get configuration with new value
+-[ RECORD 1 ]----------------------------------
+depthkey  | "environment.depth.belowTransducer"
+update_at | t
+
+api.metadata get configuration base on update_at value
+-[ RECORD 1 ]----------------------------------
+depthkey  | "environment.depth.belowTransducer"
+update_at | t
+