circle CI: add meson plain and release build types
circle CI: add meson plain and release build types

Fixes #770

Signed-off-by: Peter Hutterer <b9c50af7afa7642f6f854434cda9ffe54ece8b85@who-t.net>

libratbag/libratbag,whot/libratbag,whot/libratbag,libratbag/libratbag,whot/libratbag,libratbag/libratbag