Cursed Ruins V0.2 - Menu and some bug fixes

This version includes mostly sorting out code and minor bug fixes. Here are some of the changes:

• Music was removed
• Gold objects do not glow in the dark anymore
• Movement was fixed to be relative to the camera
• Step sounds adjusted to the walking speed. New sounds added for UI and landing.
• Particles added to crumbling blocks
• New menu and options. Volume and mouse sensibility can now be changed
• Inventory can no longer be opened during an ending screen (give up/death/escape)

And these are some of the changes planned for future versions:

• Select which treasure to collect each time (now the order is fixed for the first 5 levels)
• Item shop to sell collected items and spend gold
• Pick up items by pressing E instead of walking into them
• Different types of ruins and walls
• NPCs in the ruins.