ETC and KTC support is provided through the Khronos Group

Get the original source code and any updates at: http://www.khronos.org/opengles/sdk/tools/KTX/

Review LICENSE for licensing details

NOTE: SUPPORT_SOFTWARE_ETC_UNPACK is defined as zero (0) in this application so we don't have to include etcdec.cxx; the license for this file does not work with this application.
