igl | Fix mipmapping issue in Tiny_MeshLarge

Summary:
`Tiny_MeshLarge` lost mip-mapping after D48017483.

The default sampler #0 comes with mip-mapping disabled. Use our custom sampler bound to the binding slot #1.

https://pxl.cl/3dXgr

Reviewed By: EricGriffith

Differential Revision: D48709374

fbshipit-source-id: a59cd4844f93bf56f757b91115a7b40891f9bbd1

samples/desktop/Tiny/Tiny_MeshLarge.cpp

@@ -379,7 +379,7 @@ layout(set = 0, binding = 0) uniform sampler2DShadow texShadow;
 layout(set = 0, binding = 4) uniform samplerCube texSkyboxIrradiance;
 
 vec4 textureBindless2D(uint textureid, vec2 uv) {
-  return texture(sampler2D(kTextures2D[textureid], kSamplers[0]), uv);
+  return texture(sampler2D(kTextures2D[textureid], kSamplers[1]), uv);
 }
 #else
   layout(binding = 0) uniform sampler2D texShadow;