[Journal] Tidying up for the next version (Pixiv Fanbox)

After I set a sturcture of testzone, I started to deal with few other stuff that I've been put off.

- Testzone

Looped section will be displayed as green area. You can change loop count by controlling the right top area of the play bar(1~9 or infinite times).

(Ignore title error. It's becuase while old failure-N2 animation has been added, other miscellaneous stuffs did not.)

- Maps

As the way to enter to the testzone has been changed, I added blockage texture on the map to block the way. I also retouched some old texutes.

- Collision Detection

Ellipse collision detection is now in place.

- Monster

Failure now has proper gravity behaviour. (good to having a proper testzone now :3)