Add 1.54.0 patches to site.
Generated using:
svn diff -c84947 https://svn.boost.org/svn/boost/branches/maintenance \ | filterdiff --clean \ > ~/boost/website/live/patches/1_54_0/001-coroutine.patch svn diff -c84948 https://svn.boost.org/svn/boost/branches/maintenance \ | filterdiff --clean \ > ~/boost/website/live/patches/1_54_0/002-date-time.patch