lame library version 3.100.
The following changes have been made:
 *  Obviously, unnecessary folders and files have been removed.
 *  <https://sourceforge.net/p/lame/svn/6438/> has been applied to fix
    <https://sourceforge.net/p/lame/bugs/496/>.
 *  <https://sourceforge.net/p/lame/svn/6444/> has been applied to fix
    <https://sourceforge.net/p/lame/bugs/500/>.
 *  <https://sourceforge.net/p/lame/svn/6445/> has been applied to fix
    <https://sourceforge.net/p/lame/bugs/501/>.
 *  `include/lame.h` has been modified to not touch WinAPI macro `CDECL`
 *  export ordinals in `include/lame.def` have been removed
 *  negative-shift warning in VbrTag.c has been fixed.
 *  function prototype mismatch has been fixed for on_pe() and
    L3psycho_anal_vbr().
 *  Forced library name in lame.def has been removed.
 *  All modifications have been marked with /* OpenMPT */.
 *  For building, premake is used to generate Visual Studio project files.
    See ../build/premake/ for details.
