onepagers for MSBuildServer and RAR caching

[SimaTian]

Onepagers as per our internal team discussion.

[SimaTian]

Hello @tkapin @donJoseLuis, I went over the comments and answered what I could.
That being said I've got kind of a technical question - how much more in depth should I do in the next iteration please? (I will fill in the requested information that I put into the comments for now at the very least)
I'm aware I was probably too vague at some places and didn't explain deeply enough at others. Part of this I attribute to the fact that I was sticking to the "one pager" format. I was actively cutting some stuff away to keep the stuff as concise as possible with the hope to keep it contained on, well, one page.
I have no issue writing more so this is more of a check - what is an expected length of one pager please? I probably took it too literally.

[baronfel]

One additional risk that I see is that this feature might end up like the caching plugin - something that only 1ES can use, and only on some platforms. We should ideally take an implementation interface that is

• capable of cross-platform support
• able to be used in an IPC manner as well as an in-proc manner (i.e. msbuild server)
• able to be used both for Framework MSBuild and .NET MSBuild