features: installer

[o0101]

Should be possible to wrap a grader app in another grader app that functions as an installer.

So rather than having a grader-base as the base project of the installer

we can fork grader-base to a grader-installer-base and have a build flow that first creates a grader-app from grader-base, then copies that into the relevant folder in a grader-installer project and creates an installer.

the installer UI can be done the same way as a regular grader app, and we can do the install with NodeJS fs functions, and so on. FUCK YEAH! :p ;) xx