Share settings via file in solution

[mike-ward]

Share the settings file via git (or other SCM) - maybe consider putting it aside SLN file or something to make it team-shareable

I was thinking about something similar as resharper is doing for team shared setting. they create a setting file with the same name as the solution with a postfix and take the settings from there and then put your personal ones on top.

So the file could be e.g. 'MySolution.sln.vscolor' with the same json format. Then we can simply check in the settings file and everybody has the same colors (without having to configure anything by him/herself)

[mike-ward]

Implemented in 2.72