Use 7zip when available for zip file (more fast)

[edgardmessias]

Example with vim, reduce the time of 67 seconds to 23 seconds

Command for test:

Measure-Command { .\bin\scoop.ps1 update vim -f }

#output
vim: 8.1.1330 -> 8.1.1330
WARN  Scoop uses 'aria2c' for multi-connection downloads.
WARN  Should it cause issues, run 'scoop config aria2-enabled false' to disable it.
Updating one outdated app:
Updating 'vim' (8.1.1330 -> 8.1.1330)
Downloading new version
Loading gvim_8.1.1330_x64.zip from cache.
Checking hash of gvim_8.1.1330_x64.zip ... ok.
Uninstalling 'vim' (8.1.1330)
Unlinking ~\scoop\apps\vim\current
Loading gvim_8.1.1330_x64.zip from cache.
Extracting gvim_8.1.1330_x64.zip ... done.
Linking ~\scoop\apps\vim\current => ~\scoop\apps\vim\8.1.1330
Creating shortcut for gVim (gvim.exe)
'vim' (8.1.1330) was installed successfully!

Measure with 7zip:

Days              : 0
Hours             : 0
Minutes           : 0
Seconds           : 23
Milliseconds      : 112
Ticks             : 231125631
TotalDays         : 0,000267506517361111
TotalHours        : 0,00642015641666667
TotalMinutes      : 0,385209385
TotalSeconds      : 23,1125631
TotalMilliseconds : 23112,5631

Measure with powershell 5:

Days              : 0
Hours             : 0
Minutes           : 1
Seconds           : 7
Milliseconds      : 113
Ticks             : 671134835
TotalDays         : 0,000776776429398148
TotalHours        : 0,0186426343055556
TotalMinutes      : 1,11855805833333
TotalSeconds      : 67,1134835
TotalMilliseconds : 67113,4835

[niheaven]

Why not use if...else...? i.e., move extract_fn = "Expand-ZipArchive" to else

[edgardmessias]

@niheaven, done

[niheaven]

LGTM

[linsui]

Can this be merged?