Enhance gltfpack testing coverage further

We are still missing coverage for some important paths (such as ID
attribute processing) due to lack of relevant assets, and for some less
important paths (such as command line option compatibility), but this
should cover a few more cases that are good to test.

.github/workflows/build.yml

@@ -162,13 +162,18 @@ jobs:
         ./gltfpack -test demo/pirate.obj -si 0.5
         ./gltfpack -test demo/pirate.obj -si 0.1 -sv -sa
         ./gltfpack -test demo/pirate.obj -sd 0.5 -md 64
+        ./gltfpack -test demo/pirate.obj -noq
+        ./gltfpack -test demo/pirate.obj -vp 16 -vt 16 -vn 16 -vc 16
         ./gltfpack -test glTF-Sample-Assets/Models/ABeautifulGame/glTF/ABeautifulGame.gltf -mi -c
         ./gltfpack -test glTF-Sample-Assets/Models/BoxTextured/glTF/BoxTextured.gltf -vpf -vtf -c
         ./gltfpack -test glTF-Sample-Assets/Models/BoxTextured/glTF/BoxTextured.gltf -vpf -vtf -cc
         ./gltfpack -test glTF-Sample-Assets/Models/BoxTextured/glTF/BoxTextured.gltf -tc
-        ./gltfpack -test glTF-Sample-Assets/Models/BoxTextured/glTF/BoxTextured.gltf -tc -tq color 10
+        ./gltfpack -test glTF-Sample-Assets/Models/BoxTextured/glTF/BoxTextured.gltf -tc -tq color 10 -tu normal,attrib
+        ./gltfpack -test glTF-Sample-Assets/Models/BoxTextured/glTF/BoxTextured.gltf -tr
+        ./gltfpack -test glTF-Sample-Assets/Models/BoxTextured/glTF/BoxTextured.gltf -tc -ts 0.5 -tl 64
         ./gltfpack -test glTF-Sample-Assets/Models/CesiumMan/glTF/CesiumMan.gltf -tu -ts 0.6 -tp
         ./gltfpack -test glTF-Sample-Assets/Models/PrimitiveModeNormalsTest/glTF/PrimitiveModeNormalsTest.gltf -si 0.5
+        ./gltfpack -test glTF-Sample-Assets/Models/VertexColorTest/glTF/VertexColorTest.gltf -si 0.5 -sv
         ./gltfpack -test glTF-Sample-Assets/Models/SimpleMeshes/glTF/SimpleMeshes.gltf -mm
     - name: test output
       run: |