V2 per-column cell formatting

[chriddyp]

This particular issue only pertains to the following capabilities. Of course, there are many additional cell formatting functionality that we can consider in the future or with an additional sponsor :)

1. Support for determining the number of visible decimal places
2. Support for prefixes and suffixes (e.g. $ or %)
3. Support for displaying comma separators in numbers (e.g. 3,401,403 instead of 3401403)

The following constraints apply to value formatting:

• It is only applied on a per-column basis
• When editing the cells, the formatting features aren’t displayed. For example, if the cell displays “$3,401,403”, then when you edit this cell it will display “3401403”
• Regional formatting is not considered. For example, if you specify a column as “$” or comma-separated, it will not change format depending on the locale (i.e. it will not become “3.401.403” if viewed in a European country).

[chriddyp]

this is done now, right @Marc-Andre-Rivet ?

[Marc-Andre-Rivet]

Closed by #377