[Bug 48652] New: Use shared Gecko and Mono installs

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48652

Bug ID: 48652
           Summary: Use shared Gecko and Mono installs
           Product: Wine-Testbot
           Version: unspecified
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

The TestBot currently uses the msi Gecko and Mono installers to prepare the
WinePrefixes for the tests. 
Gecko and Mono now support a shared install mode which helps speed up the
WinePrefix creation. Unlike their msi variant they may also come in unstripped
variant which could help with debugging.

Faster WinePrefix creation could help the TestBot (see bug 48354) so it should
support this shared install mode. Note that wt-daily already supports the new
mode.
https://github.com/fgouget/wt-daily