[ifaceed] Bad UX in database loading

[mamontov-cpp]

Buttons for saving and loading database must go in upper corner, since it's popular stuff. But resource loading/reloading should go into some tab or even separate window, since never done this. Fix texture coords if rarely used too, in fact it was long since it has been used.

[mamontov-cpp]

Forgot, that there are two cases. Case 1: Starting with no loaded resources - that way the buttons should be in place and hide only when resources are loaded Case 2: Starting with loaded resources - that way the buttons should be hidden