sdbusplus: srcrev bump 1b1321cf54..4991d3bed1

Patrick Williams (12):
      remove usage of WANT_TRANSACTION option
      build: move python setuptools for future non-autotools
      build: add setuptools install script
      clean up pedantic compile warnings
      asio: object_server: add virtual destructors
      clang-format: reformat for clang-10
      clean up more pedantic compile warnings
      meson: create basic build structure
      meson: set default buildtype to debugoptimized
      asio: connection: add missing initializer
      clang-format: sync from docs master .clang-format
      test: exception: suppress scan-build errors

(From meta-phosphor rev: 0322b039747bd7c7cb1e705851849cbe625b9325)

Change-Id: I997cfd9f0f8c5f7a243011f962f76ed765b6b7df
Signed-off-by: Andrew Geissler <openbmcbump-github@yahoo.com>
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>