Support --target-dir in cargo make invocations

[wmmc88]

Currently, this is not supported for 2 reasons:

1. the option is not currently parsed by our cargo-make plugin:

   windows-drivers-rs/crates/wdk-build/src/cargo_make.rs

   Line 322 in 10a8e37

   impl ParseCargoArgs for CompilationOptions {

This is a simple enhancement^

2. The implementation of find_top_level_cargo_manifest does not work when a --target-dir is supplied:

   windows-drivers-rs/crates/wdk-build/src/lib.rs

   Line 875 in 10a8e37

   pub fn find_top_level_cargo_manifest() -> PathBuf {

AFAIU, this 2nd issue is blocked by having support for mutually-exclusive cargo features. The pre-RFC for that idea is here. See previous discussion on this issue: rust-lang/cargo#13484

For the time being, as far as i can tell, there is no path forward to support --target-dir builds until progress is made on mutually exclusive cargo features