Reworked about panel, design inspired by Catznip

doc/supporters.txt

indra/llui/lliconctrl.cpp

indra/llui/lliconctrl.h

indra/newview/llfloaterabout.cpp

indra/newview/llfloaterabout.h

indra/newview/skins/default/textures/alchemy/alchemy_128.png

...ewview/skins/default/textures/alchemy/alchemybeta_128.png

...iew/skins/default/textures/alchemy/alchemyproject_128.png

...ewview/skins/default/textures/alchemy/alchemytest_128.png

indra/newview/skins/default/textures/alchemy/discord_32.png

indra/newview/skins/default/textures/alchemy/mastodon_32.png

indra/newview/skins/default/textures/textures.xml

indra/newview/skins/default/xui/en/floater_about.xml

indra/newview/viewer_manifest.py