[style] Adopt with meson

src/meson.build

@@ -158,6 +158,7 @@ hb_base_sources = [
   'hb-shaper.hh',
   'hb-static.cc',
   'hb-string-array.hh',
+  'hb-style.cc',
   'hb-ucd-table.hh',
   'hb-ucd.cc',
   'hb-unicode-emoji-table.hh',
@@ -212,6 +213,7 @@ hb_base_headers = [
   'hb-set.h',
   'hb-shape-plan.h',
   'hb-shape.h',
+  'hb-style.h',
   'hb-unicode.h',
   'hb-version.h',
   'hb.h',

test/api/meson.build

@@ -28,6 +28,7 @@ tests = [
   'test-ot-metrics-tt-var.c',
   'test-set.c',
   'test-shape.c',
+  'test-style.c',
   'test-subset.c',
   'test-subset-cmap.c',
   'test-subset-drop-tables.c',