renderer_vulkan: Add vulkan initialization code (#6620)

* common: Move dynamic library to common

* This is so that video_core can use it

* logging: Add vulkan log target

* common: Allow defered library loading

* Also add some comments to the functions

* renderer_vulkan: Add vulkan initialization code

* renderer_vulkan: Address feedback

src/common/logging/log.h

@@ -8,6 +8,7 @@
 #include <array>
 #include "common/common_types.h"
 #include "common/logging/formatter.h"
+
 namespace Log {
 
 // trims up to and including the last of ../, ..\, src/, src\ in a string
@@ -103,6 +104,7 @@ enum class Class : ClassType {
     Render,            ///< Emulator video output and hardware acceleration
     Render_Software,   ///< Software renderer backend
     Render_OpenGL,     ///< OpenGL backend
+    Render_Vulkan,     ///< Vulkan backend
     Audio,             ///< Audio emulation
     Audio_DSP,         ///< The HLE and LLE implementations of the DSP
     Audio_Sink,        ///< Emulator audio output backend