Add a simple particle_system test suite

[Totobal5]

after issue YoYoGames/GameMaker-Bugs#5728 i made a simple particle_system suit. it include:

1. A test to see if reference names are correct.
2. A test to see if part_system_create variants correctly create a part_system.
3. A test to see if particle systems made with a persistent option are keep in another room (it check if a part system made without a persisten tag are keeping in memory too)
4. And various test with part_system_get_info to see if the information returned are in line with what the documentation tells what it should return.

I hope this pull and changes are made correctly, if not please tell me to correct it.
Thanks!

Implements the issue #270

[YYDan]

You should have created an issue in this repo to propose and document this change in advance, so then any discussions could have been had and we would know what needed to be reviewed - this should always be done before putting up any pull requests