Improved texture underground for GTA 3

Decided to replace the low quality textures. -90% of all Replaced textures resolution 1024 * 512, 1024 * 1024, 512 * 512-Have replaced optimization texture three stations of the subway, underground tunnel of the drawbacks: some textures in some places went awry. One of the stations on the second island remained with the old textures (I haven't found txd file responsible for it, if anyone knows, please write in the comments).

Author:  Vovan244