vulkan: Naming beautification

vulkan: Naming beautification

Done incremental renaming versions, bump version to 0.72.0
git-svn-id: https://cvs.khronos.org/svn/repos/oglc/trunk/nextgen/XGL@30121 e7fa87d3-cd2b-0410-9028-fcbf551c1848
git-svn-id: https://cvs.khronos.org/svn/repos/oglc/trunk/nextgen/XGL@30120 e7fa87d3-cd2b-0410-9028-fcbf551c1848
- rename VK_ENUM_NAME -> VkEnumName (enum values unchanged)
git-svn-id: https://cvs.khronos.org/svn/repos/oglc/trunk/nextgen/XGL@30119 e7fa87d3-cd2b-0410-9028-fcbf551c1848
- rename VK_THING to VkThing simple typedefs
git-svn-id: https://cvs.khronos.org/svn/repos/oglc/trunk/nextgen/XGL@30118 e7fa87d3-cd2b-0410-9028-fcbf551c1848
VK_STRUCTURE_NAME -> VkStructureName
    rename the memory function pointers to be consistent with other function pointers
git-svn-id: https://cvs.khronos.org/svn/repos/oglc/trunk/nextgen/XGL@30117 e7fa87d3-cd2b-0410-9028-fcbf551c1848
vkPlatform.h -> vk_platform.h (to avoid issues on case-sensitive file systems)
   Fix #include in vulkan.h
   VK_OBJECT_NAME -> VkObjectName
   xgl<FunctionName>Type -> PFN_vk<FunctionName> for function pointers
git-svn-id: https://cvs.khronos.org/svn/repos/oglc/trunk/nextgen/XGL@30113 e7fa87d3-cd2b-0410-9028-fcbf551c1848