Add Simplified and Traditional Chinese as Transcript language options

TNL-1740

common/test/data/uploads/simplified_chinese.srt

@@ -0,0 +1,27 @@
+0
+00:00:00,260 --> 00:00:01,510
+ANANT AGARWAL：欢迎EDX
+
+1
+00:00:01,510 --> 00:00:04,480
+我阿南特阿加瓦尔，我EDX的总裁，
+
+2
+00:00:04,480 --> 00:00:07,430
+我也是电气工程和计算机科学教授
+
+3
+00:00:07,430 --> 00:00:08,400
+在麻省理工学院
+
+4
+00:00:08,400 --> 00:00:11,120
+在线学习是革命性的世界
+
+5
+00:00:11,120 --> 00:00:14,290
+教育永远不会再是相同的，和EDX
+
+6
+00:00:14,290 --> 00:00:16,650
+在这个革命的前沿

common/test/data/uploads/traditional_chinese.srt

@@ -0,0 +1,27 @@
+0
+00:00:00,260 --> 00:00:01,510
+ANANT AGARWAL：歡迎EDX
+
+1
+00:00:01,510 --> 00:00:04,480
+我阿南特阿加瓦爾，我EDX總裁
+
+2
+00:00:04,480 --> 00:00:07,430
+我也是電氣工程和計算機科學教授
+
+3
+00:00:07,430 --> 00:00:08,400
+在麻省理工學院
+
+4
+00:00:08,400 --> 00:00:11,120
+在線學習是革命性的世界
+
+5
+00:00:11,120 --> 00:00:14,290
+教育永遠不會再是相同的，和EDX
+
+6
+00:00:14,290 --> 00:00:16,650
+在這個革命的前沿