publish 0.18.1 && vk-sys 0.5.2 (vulkano-rs#1374)

Update winit, half, and smallvec; Release 0.18 (vulkano-rs#1332)

update winit, half, and smallvec; release 0.18

Release 0.17 (vulkano-rs#1323)

Downgrade Winit back to 0.19; Release Vulkano 0.16 (vulkano-rs#1267)

* fix after revert; release 0.16

* bump shaders version

Publish version 0.14.0. (vulkano-rs#1230)

This is kind of a delayed emergency release to address an issue where
some Linux distributions (Arch, Void and perhaps others) are unable to
build any projects depending on vulkano-shaders due to
google/shaderc-rs#58. This is resolved in shaderc 0.6 and in turn will
be resolved in vulkano 0.14 thanks to vulkano-rs#1226.

See the CHANGELOG-VULKANO.md for more details on the release.

Release vulkano 0.13 (vulkano-rs#1212)

Publish 0.12.0 of `vulkano`, `vulkano-win` and `vulkano-shaders`. (vu…

…lkano-rs#1203)

Merge pull request vulkano-rs#390 from DaseinPhaos/patch-1

Update reexports in module `vulkano::instance`