Cardigann: add support for text captcha

src/Jackett.Common/Definitions/3dtorrents.yml

src/Jackett.Common/Definitions/acidlounge.yml

src/Jackett.Common/Definitions/bitme.yml

src/Jackett.Common/Definitions/dragonworldreloaded.yml

src/Jackett.Common/Definitions/elitehd.yml

src/Jackett.Common/Definitions/ethor.yml

src/Jackett.Common/Definitions/hdchina.yml

src/Jackett.Common/Definitions/hdhome.yml

src/Jackett.Common/Definitions/hdsky.yml

src/Jackett.Common/Definitions/karagarga.yml

src/Jackett.Common/Definitions/polishsource.yml

src/Jackett.Common/Definitions/theempire.yml

src/Jackett.Common/Definitions/thegeeks.yml

src/Jackett.Common/Definitions/theoccult.yml

src/Jackett.Common/Definitions/theplace.yml

src/Jackett.Common/Definitions/theshow.yml

src/Jackett.Common/Definitions/thevault.yml

src/Jackett.Common/Definitions/torrentccf.yml

src/Jackett.Common/Indexers/CardigannIndexer.cs

src/Jackett.Common/Models/IndexerDefinition.cs