Argv is specified both by the length of argc and a trailing
nullptr. The motivation for this fix is unpleasant behavior in Qt,
which under Windows presents the user's main() function with an argv
built up using new and delete. However, this is a useful invariant in
general.

Write nullptr to end of argv array after shifting it

[FIXED] typos found in code review

…has previously been assigned

[ADDED] ClearColorImage and ClearDepthStencilImage

[FIXED] infinite loop on VK_ERROR_DEVICE_LOST

Currently assumes location of glTF-Sample-Model and availabiliyt of vsgshaderssets.

…23cfa6e)

Updated outdated function description

Properly implemented vsg::getDirectoryContents on the Windows platform

Fixed up reference to structure member

…eStates.

…kanSceneGraph into GraphicsPipelineMask

…sting.

…er handles the ordering of nested hierachies.

… Window XButtons

[FIXED] typos

Win32 xbutton support

[FIXED] counting of duplicate entries in _availableDescriptorPoolSizes

Fix typo and elaborate Windows instructions

Nested and submitOrder command graph support

…e now properly reported as being pressed if a non-modifier key was pressed or released. This fixes issue #919

[FIX] fixed reporting of modifier keys on the Windows platform

[FIXED] duplicate entries in VkDescriptorPoolSizes

About getAvailability in Descriptor Pool