fix(versions): Hotfix for #3333

[niheaven]

Hotfix for #3333

Fixed out of bounds error for updates like 1.0.0-beta4 -> 1.0.0, 1.16.0-rc2 -> 1.16.0, i.e., one is dashed version with alphabet while another is undashed version. (by L63-L70 in versions.ps1)

Also make alpha/beta/rc/prev versions lower than vanilla ones, see new test cases in Scoop-Versions.Tests.ps1.

[Ash258]

Nightly version comparison is also broken.

PS C:\WINDOWS\system32> scoop list docker                                                                               Installed apps matching 'docker':

  Docker nightly-20190621 [Ash258]

PS C:\WINDOWS\system32> scoop status                                                                                    Scoop is up to date.
Updates are available for:
    sudo: 0.2018.08.04 -> 0.2018.07.25
    vscode-insiders: nightly-20190726 -> nightly
    Docker: nightly-20190621 -> nightly

[niheaven]

I'll check nightly error again, 'cos I haven't installed such ones...

[Ash258]

Best for debug will be visual studio code insiders, lightweight, only extraction and updated daily.

[niheaven]

nightly version was treated as normal version and Compare-Version 'nightly' 'nightly-20190801' should return 1 which will not updated before...

Now nightly and nightly-xxx should be equal, and will not be updated.