Linux release packages should have executable bit set for executable files

[davidlunarg]

Package: https://github.com/LunarG/gfxreconstruct/releases/tag/v1.0.2

Here's what ls -l shows for the files that are in the package:

$ ls -l total 37988 -rw-r--r-- 1 david david 2052 Jan 23 11:02 gfxrecon-capture.py -rw-r--r-- 1 david david 14441 Jan 23 11:02 gfxrecon-capture-vulkan.py -rw-r--r-- 1 david david 98232 Jan 23 11:02 gfxrecon-compress -rw-r--r-- 1 david david 8987088 Jan 23 11:02 gfxrecon-convert -rw-r--r-- 1 david david 5783712 Jan 23 11:02 gfxrecon-extract -rw-r--r-- 1 david david 5955312 Jan 23 11:02 gfxrecon-info -rw-r--r-- 1 david david 5939504 Jan 23 11:02 gfxrecon-optimize -rw-r--r-- 1 david david 5756 Jan 23 11:02 gfxrecon.py -rw-r--r-- 1 david david 8549896 Jan 23 11:02 gfxrecon-replay -rw-r--r-- 1 david david 3422200 Jan 23 11:02 libVkLayer_gfxreconstruct.so -rw-r--r-- 1 david david 24075 Jan 23 11:02 LICENSE_ThirdParty.txt -rw-r--r-- 1 david david 1074 Jan 23 11:02 LICENSE.txt -rw-r--r-- 1 david david 45192 Jan 23 11:02 USAGE_desktop_Vulkan.md -rw-r--r-- 1 david david 26716 Jan 23 11:02 VkLayer_gfxreconstruct.json -rw-r--r-- 1 david david 8771 Jan 23 11:02 vk_layer_settings.txt