Support advance properteis for sql hint

[gzzhanghao]

Add support for advance properties (displayText for example) for sql-hint addon.

Here is an example for the new feature:

options.tables = [{
  text: 'table-name',
  displayText: 'table-name | comment',
  columns: [{
    text: 'column-name',
    displayText: 'column-name | column-type'
  }]
}]

[marijnh]

You are changing the table format in an incompatible, breaking way. That is not acceptable.

[gzzhanghao]

@marijnh The patch is backward compatible, the original table format is supported as well.

[marijnh]

Fair enough. Merged as 8f13aa6 and simplified and tested in 1eb72e8.

[prathik457]

Shouldn't this be item.displayText?
Let's suppose I have a table object {columns:{....}, text: '{{table1}}', displayText:'table1'}
Then when I type 'ta' it does not return me anything. Am I missing something?

[marijnh]

Shouldn't this be item.displayText?

No, this is used to get the actual completion text, not the label.