Update VC2010 project with new files

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2853 86ba831e-150c-0410-ab35-e06eaae15ed9
Experimental, untested, unfinished. Danger, Will Robinson.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2854 86ba831e-150c-0410-ab35-e06eaae15ed9
Full semantic separation between world and interface sounds so that the latter are never subjected to environmental effects.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2855 86ba831e-150c-0410-ab35-e06eaae15ed9
Support for disabling application of environments to EDF ambient sounds.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2856 86ba831e-150c-0410-ab35-e06eaae15ed9
Support for disabling application of environments to EDF sound sequences.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2857 86ba831e-150c-0410-ab35-e06eaae15ed9
Additions to AUTHORS file

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2858 86ba831e-150c-0410-ab35-e06eaae15ed9