VkGuide in Odin

Follows vkguide implementations with a few differences:

1. No vkbootstrap. Initialization is part of this project's code. features, extensions, and validation layers are defined in config.odin, and are used to pick the best device.
2. Shaders are written in slang. slangc is expected to be in PATH.
   • Using slang-specific features (mostly pointers for BDA)

Dependencies

All the dependencies for this project are included as git submodules.

• odin-vma
• odin-imgui