Produce statically linked (within reason) builds on all platforms.

[jonesmz]

E.g., currently many parts of the linux build are shared libraries, even libs from our own source repository.

jonesmz@ymir ~/build-osp-magnum-Desktop-Debug/bin $ ldd osp-magnum
        linux-vdso.so.1 (0x00007ffe53ba6000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fdce092d000)
        libdNewton_d.so => /home/jonesmz/build-osp-magnum-Desktop-Debug/3rdparty/newton-dynamics/lib/libdNewton_d.so (0x00007fdce0901000)
        libdScene_d.so => /home/jonesmz/build-osp-magnum-Desktop-Debug/3rdparty/newton-dynamics/lib/libdScene_d.so (0x00007fdce086b000)
        libdModel_d.so => /home/jonesmz/build-osp-magnum-Desktop-Debug/3rdparty/newton-dynamics/lib/libdModel_d.so (0x00007fdce085e000)
        libdVehicle_d.so => /home/jonesmz/build-osp-magnum-Desktop-Debug/3rdparty/newton-dynamics/lib/libdVehicle_d.so (0x00007fdce081e000)
        libSDL2-2.0d.so.0 => /home/jonesmz/build-osp-magnum-Desktop-Debug/Debug/lib/libSDL2-2.0d.so.0 (0x00007fdce05b7000)
        libGLX.so.0 => /usr/lib64/libGLX.so.0 (0x00007fdce0583000)
        libOpenGL.so.0 => /usr/lib64/libOpenGL.so.0 (0x00007fdce0557000)
        libdl.so.2 => /lib64/libdl.so.2 (0x00007fdce0551000)
        libdAnimation_d.so => /home/jonesmz/build-osp-magnum-Desktop-Debug/3rdparty/newton-dynamics/lib/libdAnimation_d.so (0x00007fdce0542000)
        libdCustomJoints_d.so => /home/jonesmz/build-osp-magnum-Desktop-Debug/3rdparty/newton-dynamics/lib/libdCustomJoints_d.so (0x00007fdce04f1000)
        libnewton_d.so => /home/jonesmz/build-osp-magnum-Desktop-Debug/3rdparty/newton-dynamics/lib/libnewton_d.so (0x00007fdce04b3000)
        libdgPhysics_d.so => /home/jonesmz/build-osp-magnum-Desktop-Debug/3rdparty/newton-dynamics/lib/libdgPhysics_d.so (0x00007fdce02bc000)
        libdContainers_d.so => /home/jonesmz/build-osp-magnum-Desktop-Debug/3rdparty/newton-dynamics/lib/libdContainers_d.so (0x00007fdce02a7000)
        libdMath_d.so => /home/jonesmz/build-osp-magnum-Desktop-Debug/3rdparty/newton-dynamics/lib/libdMath_d.so (0x00007fdce028c000)
        libdgCore_d.so => /home/jonesmz/build-osp-magnum-Desktop-Debug/3rdparty/newton-dynamics/lib/libdgCore_d.so (0x00007fdce01e6000)
        libstdc++.so.6 => /usr/lib/gcc/x86_64-pc-linux-gnu/10.3.0/libstdc++.so.6 (0x00007fdcdff7e000)
        libm.so.6 => /lib64/libm.so.6 (0x00007fdcdfe3c000)
        libgcc_s.so.1 => /usr/lib/gcc/x86_64-pc-linux-gnu/10.3.0/libgcc_s.so.1 (0x00007fdcdfe22000)
        libc.so.6 => /lib64/libc.so.6 (0x00007fdcdfc65000)
        /lib64/ld-linux-x86-64.so.2 (0x00007fdce101b000)
        libdbus-1.so.3 => /usr/lib64/libdbus-1.so.3 (0x00007fdcdfc14000)
        libunwind.so.8 => /usr/lib64/libunwind.so.8 (0x00007fdcdfbf6000)
        libunwind-x86_64.so.8 => /usr/lib64/libunwind-x86_64.so.8 (0x00007fdcdfbd6000)
        libpulse-simple.so.0 => /usr/lib64/libpulse-simple.so.0 (0x00007fdcdfbcf000)
        libpulse.so.0 => /usr/lib64/libpulse.so.0 (0x00007fdcdfb75000)
        libGLdispatch.so.0 => /usr/lib64/libGLdispatch.so.0 (0x00007fdcdfabd000)
        libX11.so.6 => /usr/lib64/libX11.so.6 (0x00007fdcdf962000)
        libsystemd.so.0 => /lib64/libsystemd.so.0 (0x00007fdcdf8a5000)
        libpulsecommon-13.0.so => /usr/lib64/pulseaudio/libpulsecommon-13.0.so (0x00007fdcdf815000)
        libxcb.so.1 => /usr/lib64/libxcb.so.1 (0x00007fdcdf7e8000)
        librt.so.1 => /lib64/librt.so.1 (0x00007fdcdf7de000)
        liblzma.so.5 => /lib64/liblzma.so.5 (0x00007fdcdf7aa000)
        libzstd.so.1 => /usr/lib64/libzstd.so.1 (0x00007fdcdf6b7000)
        libgcrypt.so.20 => /usr/lib64/libgcrypt.so.20 (0x00007fdcdf564000)
        libX11-xcb.so.1 => /usr/lib64/libX11-xcb.so.1 (0x00007fdcdf55f000)
        libICE.so.6 => /usr/lib64/libICE.so.6 (0x00007fdcdf540000)
        libSM.so.6 => /usr/lib64/libSM.so.6 (0x00007fdcdf535000)
        libXtst.so.6 => /usr/lib64/libXtst.so.6 (0x00007fdcdf52a000)
        libsndfile.so.1 => /usr/lib64/libsndfile.so.1 (0x00007fdcdf483000)
        libasyncns.so.0 => /usr/lib64/libasyncns.so.0 (0x00007fdcdf47c000)
        libXau.so.6 => /usr/lib64/libXau.so.6 (0x00007fdcdf477000)
        libXdmcp.so.6 => /usr/lib64/libXdmcp.so.6 (0x00007fdcdf46f000)
        libgpg-error.so.0 => /usr/lib64/libgpg-error.so.0 (0x00007fdcdf446000)
        libbsd.so.0 => /usr/lib64/libbsd.so.0 (0x00007fdcdf428000)
        libuuid.so.1 => /lib64/libuuid.so.1 (0x00007fdcdf41e000)
        libXext.so.6 => /usr/lib64/libXext.so.6 (0x00007fdcdf406000)
        libFLAC.so.8 => /usr/lib64/libFLAC.so.8 (0x00007fdcdf3b9000)
        libvorbis.so.0 => /usr/lib64/libvorbis.so.0 (0x00007fdcdf37d000)
        libvorbisenc.so.2 => /usr/lib64/libvorbisenc.so.2 (0x00007fdcdf2d0000)
        libopus.so.0 => /usr/lib64/libopus.so.0 (0x00007fdcdf249000)
        libogg.so.0 => /usr/lib64/libogg.so.0 (0x00007fdcdf23d000)
        libresolv.so.2 => /lib64/libresolv.so.2 (0x00007fdcdf223000)
        libmd.so.0 => /usr/lib64/libmd.so.0 (0x00007fdcdf213000)
        libmvec.so.1 => /lib64/libmvec.so.1 (0x00007fdcdf1e7000)