Fix/u table entity attrs
# Changed
- `showList` command: in case config contains `fieldList: ["*"]` actual fieldList is constructed by UTableEntity.
This guaranty the same behavior of a command as with `<u-table-entity :entity-name="nameOfEntity">`.
- UTableEntity: column label for complex attribute like `currencyID.code` created as concatenation
of a parent attributes captions up to 3 level depth: `currency->code` (the same as for Ext based table);
To override this behavior column label can be specified in columns (for vue renderer format) or fieldList for Ext format config.
# Fixed
- UTableEntity: if `columns` prop is not binds, then fieldList will contain attributes with `defaultView: true` only.
This prevents to fetch from DB attributes what not visible in the current view.