A new hope (palocax)

This is my first 2D shooter project in my path of learning unity.

The changes I made to this project include:

- I added a level with a different player (An astronaut)

- I created the animation for the astronaut to walk while playing

- I used new UI visuals for the buttons and menus

- I include new visuals to the astronaut level

- I changed the way of completing the first level

- I added new music for the menu and level 1