[Bug 246376] devel/vulkan-validation-layers

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=246376

            Bug ID: 246376
           Summary: devel/vulkan-validation-layers
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: ports-bugs at FreeBSD.org
          Reporter: beldin at beldin.org
                CC: greg at unrelenting.technology
                CC: greg at unrelenting.technology
             Flags: maintainer-feedback?(greg at unrelenting.technology)

Using validation layers produces erros (and potentially segfaults) for valid
usage when using GLFW. 

Error that results:

VUID_Undefined(ERROR / SPEC): msgNum: 0 - Instance Extension VK_KHR_xcb_surface
is not supported by this layer.  Using this extension may adversely affect
validation results and/or produce undefined behavior.
    Objects: 1
        [0] 0, type: 0, name: NULL
VUID-vkGetPhysicalDeviceSurfaceSupportKHR-surface-parameter(ERROR / SPEC):
msgNum: 0 - Invalid SurfaceKHR Object 0x80098b020. The Vulkan spec states:
surface must be a valid VkSurfaceKHR handle
(https://www.khronos.org/registry/vulkan/specs/1.1-extensions/html/vkspec.html#VUID-vkGetPhysicalDeviceSurfaceSupportKHR-surface-parameter)

Removing the CMAKE_OFF settings got X11 and XCB and providing options copied
from the graphics/vulkan-loader seems to provide a least suprising solution
(defaulting these 2 options to off leaves behaviour as before).

This has been tested for compiling for all 4 option combinations also.

(I'm sure the wayland option could also be transferred but testing that is
outside my configuration)

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