Fixes#4041.
Show the version with tier and build flags in Setup so that it is clear
which version of Keyman will be installed, as the Keyman version can be
distinct from the setup.exe version.
Constructs the version tag from version+stability data in the
UpdateCheckResponse and uses a new MSI property called VersionWithTag
for Windows Installers. Older MSIs will still show a.b.c.d versions
instead of the tagged version if they are checked locally (as opposed to
online), because the new VersionWithTag property will not be present.
Fixes#3680.
Note that because the installer version may differ from the Keyman
version that will actually be installed, the installer version number is
a bit hidden away in the Options dialog, to try and reduce potential for
confusion.
For example, if a user already has the installer downloaded, but a new
version of Keyman is available, then by default the installer will try
and download the new version rather than install the current version.
This starts the refactoring of Keyman Setup for Windows
for a more online-first bootstrap approach for bundling.
For users who are offline, the traditional bundled approach
works, as does throwing package files into the same folder
as setup.exe. This makes the whole installer much simpler
to deploy and test.
At this stage, there are a lot of rough edges, so need to
refine these, including setup strings, language choices,
and error and logging management.
