Add additinal assimp texture type for metalness.

3 jobs for develop in 13 minutes and 51 seconds (queued for 8 minutes and 51 seconds)
Status Job ID Name Coverage
  Build
passed #9032
build-clang

00:03:14

passed #9031
build-gcc

00:03:46

passed #9033
build-scanbuild

00:06:51