Minor fixes 0.5.6

Hello everyone!

We’ve just pushed an update with a few minor fixes and improvements. This patch is again released only for "Inception" branch with gamepad support. To switch to "Inception" branch please follow instruction in a previous update.

Changelog:

• Employee automatically goes to heal when hp is lower than 80%

• Added few gamepad hints

• Added required resources icons in upgrade and hire windows

• Added employee icon in room context when it's assigned to the room

• Added notification when your employee died

• Fixed issue with Upgrade rooms

• Fixed few issues with notifications

• Fixed few missing UI sound

• Fixed small localization issues

• Decreased сamera move speed with gamepad