pMars - SLD, DLL and Wrapper

- I included pMARS 0.9.2 modified by M Joonas Pihlaja to use SDL.
- I modularized it and wrapped into DLL and .NET component
- I'm prepared to merge it back to pMARS CVS as 0.9.3 in near future if owners allow
- Binaries are ready for download

Joonas's changes

Joonas's version can be downloaded at http://www.cs.helsinki.fi/u/jpihlaja/cw/pmars-sdl/
Multiplatform SDL library is there http://www.libsdl.org/index.php
  
Joonas made following changes:
    a) almost all changes are in SDLGRAPHX #ifdef blocks
    b) added #endif comments like #endif  /* XWINGRAPHX */
    c) added open_macro_file() in cdb.c
    d) in config.h defined DIR_SEPARATOR macro
    e) in sim.c replaced #ifdef TRACEGRAPHX with #ifndef SERVER
    f) in sim.c warrior initialization
          *tempPtr2 = W->position + W->offset;
        changed to
          *tempPtr2 = (W->position + W->offset) % coreSize;
          *tempPtr2 = *tempPtr2 < 0 ? *tempPtr2 + coreSize : *tempPtr2;
        meaning is: wrap around start offset bigger than core, and negative too
    g) Makefile added sdldisp.c, $(EXESUFFIX), SDL libraries
    h) Added new files
     - fnt16.c
     - Makefile.mingw
     - pmars.mac
     - SDL_main.c
     - sdldisp.c
     - stddisp.c
     
I compiled it for Win32 and Linux and it works well. You can download SDL version for windows from Joonas's or nMars pages and try it.
I like all those changes, so I'm proposing to commit it into oficial trunk!

My changes

a) asm.c added initialization
  warrior[curWarrior].pSpaceIDNumber = UNSHARED;
b) config.h support for WIN32 build
c) global.h + cdb.c published totalscore value for reporting status from DLL
d) global.h redirected STDOUT in case of DLL build to stderr and used this macro on various places
e) global.h - exported functions
f) pmars.c
   - added pspace_finalize() function
   - re-factored parts of body() into body_load(), body_results()
   - introduced body_finalize() - memory/state cleanup for reuse
   - introduced pspace_finalize() - memory/state cleanup for reuse
g) sim.c
   - broken simulator1() into parts
      - init_core(),
      - init_round(),
      - run_step()
      - finalize_round()
      - finalize_core()
   - wrapped it into
      - begin_match()
      - step_match()
      - end_match()
   - and finaly summed in simulator1() again
   - all changes were done as in place as possible to ease comparison with previous version.
   - there are _NO_ behavioral changes

h) sim.c during refactoring I did
   - globalized some variables to be share among all new functions
   - moved variables initialization to function where it belongs
   - run_step() is returning value, so no more goto from while{} region
      // 0 next step
      // 1 next round
      // 2 end match
   - there are _NO_ behavioral changes

i) DLL API
   Parser
   - warrior_struct* pMarsParse() + pMarsFreeParsed()

   Engine
   - pMarsBeginMatch() - exports begin_match() from sim.c
     pMarsStepMatch()  - exports step_match()  from sim.c
     pMarsEndMatch()   - exports end_match()   from sim.c

   - pMarsResultsMatch(), - compute results
   - pMarsWatchMatch()    - export pointers to internal structures

j) added files
   build.sh                             - build helper for unixes
   MakefileConsole, pMarsConsole.vcproj - Non-GUI setup
   MakefileSDL, pMarsSDL.vcproj         - SDL setup
   MakefileServer,pMarsServer.vcproj    - Non-GUI, Non-debugger setup
   pMarsDll.vcproj                      - Non-GUI, Non-debugger, exported API
   pMarsVersion.rc                      - version for exe/dll header
   pMarsDll.h                           - API / header file for DLL
     - pointers/memory exported are owned by DLL
     - DLL is _NOT_ thread safe, because of pmars implementation nature
   pMarsDll.cpp                         - implementation of API
     - only thing to notice here is, that all output is redirected to stderr which is redirected to file. We need silent DLL.
   SDL.txt                              - info about SDL