Moved some functionality from libVulkan.cpp to VkImage.cpp
in order to be able to remove the global androidSwapchainMap
which may have been causing sync issues.

I tried to make as much code as possible compile on desktop
so that we have a better chance of detecting if a desktop
related change breaks Android specific code.

Bug: b/143902189
Change-Id: Ie9e17a77c2a1705b3194ebd67adeb1a3c0e6213f
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/37828
Presubmit-Ready: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>