PR adds a WinGet configuration file to install the necessary
dependencies in order to build terminal locally. The configuration file
enables developer mode, installs PowerShell 7, Visual Studio 2022 & all
the required workloads from the .vsconfig file (in accordance with
the dependencies listed in the README).
## Validation Steps Performed
Tested the configuration file by spinning up a clean Win11 Pro VM in
azure and then doing the following:
1. Install latest WinGet on the VM using WinGet sandbox script.
Install git and clone the repo
2. Run `winget configure .config/configuration.winget` (this should work
by just double-clicking the file in explorer too)
3. After the configuration is completed, open the solution in the now
installed Visual Studio and build. The build is successful and I could
start terminal with F5
Co-authored-by: Demitrius Nelon <denelon@microsoft.com>
