Added 20 sets to [DGC] Collection

Previews & DDL:

	[DGC] 2014.01 No.1141 Jessica Kizaki 希崎ジェシカ
	[DGC] 2014.01 No.1142 Mina Mashiro 真白みな
	[DGC] 2014.02 No.1143 Nana Ozaki 尾崎ナナ
	[DGC] 2014.02 No.1144 Yuuri Morishita 森下悠里
	[DGC] 2014.02 No.1145 Anri Sakura 桜あんり
	[DGC] 2014.02 No.1146 Miku Konno 紺野ミク
	[DGC] 2014.02 No.1147 Nami Hoshino 星野ナミ
	[DGC] 2014.02 No.1148 Shelly Fujii 藤井シェリー
	[DGC] 2014.03 No.1149 Tama Mizuki 水樹たま
	[DGC] 2014.03 No.1150 Natsuki Ikeda 池田夏希
	[DGC] 2014.03 No.1151 Rei Toda 戸田れい
	[DGC] 2014.03 No.1152 Aya Kiguchi 木口亜矢
	[DGC] 2014.03 No.1153 Mami Hoshina 保科真美
	[DGC] 2014.03 No.1154 Ai Komori 小森愛
	[DGC] 2014.04 No.1155 Mai Nishida 西田麻衣
	[DGC] 2014.04 No.1156 Ruri Shinato 階戸瑠李
	[DGC] 2014.04 No.1157 Ryoko Tanaka 田中涼子
	[DGC] 2014.04 No.1158 Natsumi Kamata 鎌田奈津美
	[DGC] 2014.04 No.1159 Saki Ninomiya 二宮沙樹
	[DGC] 2014.04 No.1160 Rin Suzune 鈴音りん