Support creation of static library and build framework and dynamic library from it.
Add Makefile to better support command line or script building integration.
Update demos to each use one of framework, static library, and dynamic library.
Refactor and rename the build scripts.
Refactor and rename the Xcode Schemes.
Update build and runtime documentation.
Update What's New document.
Add LunarG demo app repository as a submodule.
Add LunarG demo config to makeAll script.
Rename Demos/README_MoltenVK_Demos.md to Demos/README.md.
Do not copy Demos folder to MoltenVK runtime distribution.
Do not copy ThirdPartyConfig.md to MoltenVK runtime distribution.
Add cmake as a dependency in README.md.