Downtown, Residential and Industrial Districts singleplayer maps flipped.

There are four versions:
1 - Flipped x coordinates (right is left and vice-versa)
2 - Flipped y coordinates (top is bottom and vice-versa)
3 - Rotated 90° clockwise and flipped x coordinates (northeast is southwest and vice-versa)
4 - Rotated 90° clockwise and flipped y coordinates (northwest is southeast and vice-versa)

How to install:
- Make a backup of your /gta2/data/ folder
- Choose one of the following folders:
"flip_x", "flip_y", "rot_90_and_flip_x" or "rot_90_and_flip_y" 
and drag all files into /gta2/data/ folder.

OBS: you can mix the flipped maps provided you change "test1.seq" file.

OBS: A lot of missions were slightly changed in order to make this
mod playable. Read "flip_fixes" for more details.

OBS2: It's recommended to save your game before doing the final jobs.
It's because there is a very small chance of at least one of the final 
bosses not appearing to kill the player, even with the changes I've made 
to prevent this from happening.

OBS3: I tested the flipped versions exaustively in order to find
bugs due to road flipping feature, but if you found something that 
ended up passing through my testings, you can talk to me in GTAMP forum
or in discord.

GTAMP thread: https://gtamp.com/forum/viewtopic.php?t=1403

- Valps
