Add Klickety to https://www.kde.org/applications/games/

[Burkhard Lück]

Hi, 

Klickety is missing on kde.org/applications/kdegames, see https://
bugs.kde.org/show_bug.cgi?id=386403. 

Attached patch adds Klickety, infos taken from code and docbook. 

json files are checked with jsonlint-py 

Any comments, improvements or objections to commit? 

Thanks

-- 
Burkhard Lück
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