Added 20 sets to [DGC] Collection

Previews & DDL:

	[DGC] 2012.02 No.1001 Nonoka Matsushima 松嶋ののか
	[DGC] 2012.02 No.1002 Aya Takigawa 滝川綾
	[DGC] 2012.02 No.1003 Ria Marunouchi 丸ノ内りあ
	[DGC] 2012.02 No.1004 Coco Aiba 相庭ココ
	[DGC] 2012.03 No.1005 Mina Asaknra 麻倉みな
	[DGC] 2012.03 No.1006 Manami Marutaka 丸高愛美
	[DGC] 2012.03 No.1007 Miki Ichikawa 市川みき
	[DGC] 2012.03 No.1008 Rei Kawakami 川上れい
	[DGC] 2012.03 No.1009 Kirara Asuka 明日花キララ
	[DGC] 2012.03 No.1010 Nana Nininiya 二宮ナナ
	[DGC] 2012.04 No.1011 KONAN
	[DGC] 2012.04 No.1012 Momoko Tani 谷桃子
	[DGC] 2012.04 No.1013 Yuuki Aikawa 相川友希
	[DGC] 2012.04 No.1014 Rei Ozora 大空れい
	[DGC] 2012.04 No.1015 Anna Anjo 安城アンナ
	[DGC] 2012.04 No.1016 Mei Kago 加護芽衣
	[DGC] 2012.05 No.1017 Anri Sugihara 杉原杏璃
	[DGC] 2012.05 No.1018 Saki Seto 瀬戸早妃
	[DGC] 2012.05 No.1019 Reon Otowa 音羽レオン
	[DGC] 2012.05 No.1020 Fujii Shieri 藤井シェリー