Update of the test version 5.0.12 #RutonyChat

This version is intended for review and is not final. It may contain (almost certainly) errors and shortcomings. Exclusively for testing new functionality.

How to install the test version: https://vk.com/topic-106628872_36323429?post=13000

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► Autonomous scripts. Added parameters selectfile and selectdirectory. https://i.imgur.com/Oje8oan.png ► #Twitch. Reworked channel points. The old API will be disabled on April 14. ► Minor changes.