OS4 port of the MOS port of Atlantis.

Bugs:

It's my first time porting an OpenGL application and I couldn't find a way
to enable fullscreen mode.

I added the options to set the window size and position to be able to fake
fullscreen mode by using values like "1050 800 -10 -20" (on 1024x768 screen)
but minigl or GLUT doesn't seem to allow creating a window larger than the
screen size.

If you start it from Workbench and leave it running long enough, the machine
may freeze eventually. At least it happened to me once.


The atlantis.c source file is reduced to what's needed to compile.
(Essentially I removed the menu, text overlay, stats and fullscreen features)
See the MOS version on Aminet for the original sources.

It pales in comparison to the original linux screensaver but I hope you can
enjoy it anyway :-)

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                54997  162312  33.9% -lh5- 3943 Nov 30 23:42 Atlantis/Atlantis
[generic]                 2954    7463  39.6% -lh5- 6221 Nov 30 23:40 Atlantis/atlantis.c
[generic]                 1335    2606  51.2% -lh5- bed5 Nov 30 22:20 Atlantis/atlantis.h
[generic]                 6991   11088  63.1% -lh5- 9b7a Nov 30 22:55 Atlantis/Atlantis.info
[generic]                 7717   52010  14.8% -lh5- 132e Nov 29 01:40 Atlantis/dolphin.c
[generic]                  624    1045  59.7% -lh5- cf64 Nov 30 23:26 Atlantis/ReadMe.OS4
[generic]                 5490   33835  16.2% -lh5- 20c5 Nov 29 01:41 Atlantis/shark.c
[generic]                 1974    5567  35.5% -lh5- 9653 Nov 29 01:41 Atlantis/swim.c
[generic]                 7014   48149  14.6% -lh5- 0ea8 Nov 29 01:41 Atlantis/whale.c
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         9 files   89096  324075  27.5%            Dec  1 19:54