[NTG-context] statistical charts module re-published

Hi, since the Akela server at Mendel University is down since a while, I got no response from Tomáš, and it would be a pity to lose this module, I re-published the statistical charts module at https://codeberg.org/fiee/context-statistical-charts I’ll also put it on modules.contextgarden.net This is version 0.31, tagged by me as 2020-09-11 (date of the presentation). I’m sure there’s a newer version somewhere, at least at Ramkumar’s, and I’d like to update the repo to that. Also the sources for the documentation are missing. Authors, please help me save your work! Hraban