Download from the Visual Studio Gallery or get the nightly build
The Open Command Line extension supports all types of consoles like cmd, PowerShell, Bash and more. You can easily configure which to use by setting the paths and arguments in the Options.
This extension adds a new command to the project context menu that will open a command prompt on the project's path. If the solution node is selection in Solution Explorer, then a console will open at the root of the .sln file.
You can access the command by hitting ALT+Space as well.
You may change this shortcut in the Options Window under Environment -> Keyboard
Look for the command ProjectAndSolutionContextMenus.Project.OpenCommandLine.Default