Windows Installer: switch to wix5

The chocolatey tool that was fetching us wix v3 can no longer be used to
fetch wix v4+ so we had to switch to dotnet to fetch the latest wix.

This commit builds the installer with wix v5.
wix v5 is installed via the `dotnet` tool in the windows image itself
at https://github.com/containers/automation_images/pull/354.

Going forward, the `dotnet` tool will also be used to build the installer.

In the process, the wix v3 files were converted to wix v4+ using `wix
convert` followed by manual modifications along with switch to wixproj
builds with dotnet.

The GitHub Action to upload windows installer now builds the installer
using winmake.ps1.

Contributions from Mario Loriedo:
- bundle setup update to wix5
- updates to build and release process scripts
Ref: https://github.com/lsm5/podman/pull/3

- small fixes to windows installer theme
Ref: https://github.com/lsm5/podman/pull/4

- Better win-installer sidebar logo
Ref: https://github.com/lsm5/podman/pull/5

Resolves: RUN-2055

Co-authored-by: Mario Loriedo <mario.loriedo@gmail.com>
Signed-off-by: Lokesh Mandvekar <lsm5@redhat.com>