新增filter跟search功能

O3O

         NSDictionary *filterMapping = @{ @(HentaiFilterTypeDoujinshi)    : doujinshiFilter,
                                     @(HentaiFilterTypeManga)        : mangaFilter,
                                     @(HentaiFilterTypeArtistcg)     : artistcgFilter,
                                     @(HentaiFilterTypeGamecg)       : gamecgFilter,
                                     @(HentaiFilterTypeWestern)      : westernFilter,
                                     @(HentaiFilterTypeNonh)         : nonhFilter,
                                     @(HentaiFilterTypeImagesets)    : imagesetFilter,
                                     @(HentaiFilterTypeCosplay)      : cosplayFilter,
                                     @(HentaiFilterTypeAsianporn)    : asianpornFilter,
                                     @(HentaiFilterTypeMisc)         : miscFilter};