Support colors in table cells

[jlusiardi]

Hi,

I would like to use https://github.com/onevcat/Rainbow to colorize cells in a TextTable.

let table = TextTable<Attributes> {
    [   
        Column(title: "Country", value: $0.country!.blue), 
        Column(title: "County", value: $0.county!.red),
    ]   
}   
table.print(result, style: Style.psql)

This result in a table where the length of the cell data in https://github.com/cfilipov/TextTable/blob/master/Sources/TextTable/TextTable.swift#L237 should only count the visible characters. The escape sequences used for colors should not be counted here:

+----------------------------+--------------------------------+
| Country                    | County                         |
+----------------------------+--------------------------------+
| Baden-Württemberg | SK Karlsruhe          |
| Baden-Württemberg | SK Ulm                |

(The colors are missing...)

Is there any way this can already be achieved or implemented?

Greetings
Joachim