Bug#792839: missing license in debian/copyright

[Thorsten Alteholz]

Package: bullet
Version: 2.83.4+dfsg-1
Severity: serious
User: alteholz at debian.org
Usertags: ftp
X-Debbugs-CC: ftpmaster at ftp-master.debian.org
thanks

Dear Maintainer,

please add the missing licenses of:
  data/seymourplane_triangulate.dae
  src/Bullet3OpenCL/NarrowphaseCollision/b3VoronoiSimplexSolver.cpp
  src/BulletCollision/NarrowPhaseCollision/btVoronoiSimplexSolver.cpp
to debian/copyright.

Thanks!
   Thorsten