Added 20 sets to [DGC] Collection

Previews & DDL:

	[DGC] 2009.11 No.781 Sarasa Hara 原更紗
	[DGC] 2009.11 No.782 Rin Sakuragi 桜木凛
	[DGC] 2009.11 No.783 Saki Ootsuka 大塚咲
	[DGC] 2009.11 No.784 Shiori Asuka 飛鳥井詩織
	[DGC] 2009.11 No.785 Kurumi Shiraishi 白石くるみ
	[DGC] 2009.11 No.786 Tiffany ティファニー
	[DGC] 2009.12 No.787 Momoko Tani 谷桃子
	[DGC] 2009.12 No.788 Emi Yanagimoto 柳本絵美
	[DGC] 2009.12 No.789 Rika Kawamura 川村りか
	[DGC] 2009.12 No.790 Tiara Ayase 綾瀬ティアラ
	[DGC] 2009.12 No.791 Chiori Tsukimi 月見栞
	[DGC] 2009.12 No.792 Roa Sumikawa 澄川ロア
	[DGC] 2009.12 No.793 Miina Yazawa 矢沢みいな
	[DGC] 2009.12 No.794 Sayuri Ogawa 小川さゆり
	[DGC] 2009.12 No.795 Natsumi Tomosaka 友坂なつみ
	[DGC] 2010.01 No.796 Mai Nishida 西田麻衣
	[DGC] 2010.01 No.797 Yukiko Taira 平有紀子
	[DGC] 2010.01 No.798 Kana Natsugaki 夏垣佳奈
	[DGC] 2010.01 No.799 Ai Sayama 佐山愛
	[DGC] 2010.01 No.800 Chisato Shouda 翔田千里