Patch clickhouse SQL parsing

[Amogh-Bharadwaj]

Patches clickhouse peer creation from query layer

CREATE PEER <clickhouse_peer_name> FROM CLICKHOUSE
WITH
(
    host='<host>',
    port=<port>,
    user='<user>',
    password='<password>',
    database='<database>',
    -- disable_tls = true
);

Functionally tested:

amogh=> create peer mych from CLICKHOUSE with(host='host.docker.internal', port=9000, user='default', password='clickhouse', database='clickhouse', disable_tls = true);
OK

amogh=> create peer mych from CLICKHOUSE with(host='host.docker.internal', port=9000, user='default', password='clickhoufse', database='clickhouse', disable_tls = true);
ERROR:  User provided error: ErrorInfo { severity: "ERROR", code: "internal_error", message: "[peer]: invalid configuration: CLICKHOUSE peer mych was invalidated: failed to open connection to Clickhouse peer: failed to ping to Clickhouse peer: code: 516, message: default: Authentication failed: password is incorrect, or there is no user with such name.