qt5: update to v5.11.0, add support pcre2 * src/qtbase.mk: update version, checksum * src/qtimageformats.mk: update checksum * src/qtisvg.mk: update checksum * src/qttools.mk: update checksum * src/qtbase-1-fixes.patch, src/qttools-1.patch: update patch from mxe.cc * src/pcre2.mk: new file * index.html: add pcre2 * src/sqlite.mk: enable column metadata

^settings\.mk
^usr/
^log/
^pkg/
^built-packages/
^installed-packages/
^wip/
^tmp-.*/

^autom4te\.cache/
^configure
^config\.status
^config\.log
^Makefile
^cmake-toolchain-file\.stamp

^cross-tools/
^gnuplot/
^octave/
^tools/makeinst-script\.sh
^tools/set-mxe-env\.sh