Improve coreclr windows native build time #33872
Description
Some ideas floating around are moving off of the msbuild cmake project generator and onto the ninja or nmake generators.
Moving off of the msbuild generator allows us to remove another full framework dependency in our build. In addition, this is an attempt to improve our native build parallelism on windows. This work will hopefully allow our native build on windows to compete with our linux builds.
This is related to #33510.