Add shader image atomic int64 extension if used when creating device

Add shader image atomic int64 extension if used when creating device

Add VK_EXT_shader_image_atomic_int64 extension and enabled the features
when creating the device in sparse resources tests if the extension
is used

Components: Vulkan

VK-GL-CTS issue: 4050

Affected tests:
dEQP-VK.sparse_resources.*

Change-Id: If3de1d1e30a57db076802e2933392081c7c3069c