新增filter跟search功能

O3O

     	NSDictionary *mapping = @{ @(HentaiFilterTypeDoujinshi) : @"Doujinshi",
		                       @(HentaiFilterTypeManga)     : @"Manga",
		                       @(HentaiFilterTypeArtistcg)  : @"Artistcg",
		                       @(HentaiFilterTypeGamecg)    : @"Gamecg",
		                       @(HentaiFilterTypeWestern)   : @"Western",
		                       @(HentaiFilterTypeNonh)      : @"Nonh",
		                       @(HentaiFilterTypeImagesets) : @"Imageset",
		                       @(HentaiFilterTypeCosplay)   : @"Cosplay",
		                       @(HentaiFilterTypeAsianporn) : @"Asianporn",
                               @(HentaiFilterTypeMisc)      : @"Misc"};