recompiled SDL1.2 for windows

git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@1102 af15c1b1-3010-417e-b628-4374ebc0bcbd
fix sdl2-msvc build

git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@1103 af15c1b1-3010-417e-b628-4374ebc0bcbd
add an sdl2 target to msvc builds

git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@1104 af15c1b1-3010-417e-b628-4374ebc0bcbd
add sdl2 targets to codeblocks projects

git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@1105 af15c1b1-3010-417e-b628-4374ebc0bcbd