Run current app project via AppRun

[spatialdude]

The user should be able to run the current app project via AppRun.

[marikavertzonis]

file to use for the toolbar icon (this comes from https://devtopia.esri.com/Melbourne/appstudio-desktop/blob/master/AppRun/AppRun-light.png)

NB: the above white looking space is an image, click it to download

[shobanasuresh]

@zhitaop As discussed, AppStudio installation path can be read from AppStudio.ini -> General -> installDir key

    [General]
    installDir=C:\\Users\\shob7068\\Applications\\ArcGIS\\AppStudio

AppStudio.ini file location:

Windows
C:\Users\username\AppData\Roaming\Esri\AppStudio.ini
EDIT by SQ: should use environment variable to locate AppData\Roaming, i.e. %APPDATA%\Esri\AppStudio.ini

macOS and Linux
~/.config/Esri/AppStudio.ini

When the AppStudio.ini file or the installDir key is missing, it's safe to assume that AppStudio is not installed on the machine. The AppStudio VS Code extension should display an error message in this case.

@stephenquan

[marikavertzonis]

• tested on windows 10, linux 18 and mac os 10.13, successfully opening (and running) a project on each
• toolbar icon still needs to be updated

[marikavertzonis]

have split the icon updating off to #14, marking it as impeded until the vscode issue is resolved.
without this, the run project tool works as expected. if enhancements are required they should be created as new specific issues.