Document current state of all patches and add missing Forwards

...an/patches/0024-Revert-to-using-system-pcre-library.patch

...hange-the-default-optimization-from-O3-to-O2-in-mys.patch

debian/patches/930314-cross-build.patch

debian/patches/extend_default_test_timeout_for_tokudb.patch

debian/patches/kFreeBSD-gettid.patch

debian/patches/libmariadb-kfreebsd.patch

debian/patches/mytop-merge_src:mytop_improvements.patch

debian/patches/rocksdb-kfreebsd.patch

debian/patches/tokudb-libjemalloc.patch