Collada loader now instantiates camera nodes which had been ignore so far (thx @NemoStein for the test .dae)

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code@4602 dfc29bdd-3216-0410-991c-e03cc46cb475
Added comments to EGL manager.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code@4603 dfc29bdd-3216-0410-991c-e03cc46cb475