create-builder should be able to create a Windows image

[natalieparellano]

Description

pack create-builder currently only creates Linux images.

Proposed solution

pack (compiled for Linux and Mac) and pack.exe (compiled for Windows) should be able to create Windows images.

Describe alternatives you've considered

Additional context

• Leaving buildpackages out of scope for now due to their complexity
• Leaving validation of lifecycle/stack-image OS matching for a future issue (including download of default lifecycle).
• Currently, layer tar files are written with paths starting from e.g., /cnb - this should be Files/cnb on Windows
• It might be best for Lifecycle should compile and package on Windows lifecycle#234 to be completed before this issue can be tackled

Possible acceptance criteria

• Given a builder.toml that references a Windows stack and lifecycle
• pack create-builder windows-builder --builder-config <path to builder.toml> should succeed when run with and without --publish
• pack.exe create-builder windows-builder --builder-config <path to builder.toml> should succeed when run with and without --publish
• pack inspect-builder windows-builder should succeed
• docker run windows-builder should succeed and we should see that the lifecycle executables are present in the image at the expected location

[natalieparellano]

Reminder: confirm imgutil and pack both have secure containerized registries