[bug] NOCACHE directive is ignored when copying schema to clipboard

[javier]

When I create a table with a NOCACHE directive such as:

CREATE TABLE 'monsterTMP' (
  time TIMESTAMP,
  system SYMBOL capacity 256 CACHE,
  address SYMBOL capacity 256 CACHE,
  value DOUBLE,
  text VARCHAR,
  status SYMBOL NOCACHE
) timestamp (time) PARTITION BY DAY WAL;

And I then refresh the table list and copy the schema into the clipboard, the schema is missing the NOCACHE bit, which is unfortunate as the default is CACHE. We should explicitly always add CACHE or NOCACHE to symbol columns depending on table schema.