update copyright information
To my best knowledge.
diff --git a/icd/common/icd-bil.h b/icd/common/icd-bil.h
index 43cc354..7ef0611 100644
--- a/icd/common/icd-bil.h
+++ b/icd/common/icd-bil.h
@@ -20,6 +20,10 @@
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Courtney Goeltzenleuchter <courtney@lunarg.com>
+ * Chia-I Wu <olv@lunarg.com>
*/
#ifndef ICD_BIL_H