Enables Project Settings > Player > Auto Graphics API. This should resolve the "your device does not match the hardware requirements of this application" error on older Android devices.

Changes:
-UserHash input field made read only and multiline.
-Hash generation now also triggered on UserText input field submit.
-Added support for SHA256, SHA512 and MD5 algorithms. Previously those options were mentioned in the list but didn't do anything.

First release.