Move YAPF style setting to a project-wide .style.yapf file

.style.yapf

@@ -0,0 +1,2 @@
+[style]
+based_on_style = google

scripts/format_all.sh

@@ -14,8 +14,7 @@
 # limitations under the License.
 # ==============================================================================
 echo "Doing python language formatting..."
-python3 -m yapf --style=google --in-place --recursive --parallel \
-  ./benchmarks ./scripts ./tensorflow_quantum
+python3 -m yapf --in-place --recursive ./benchmarks ./tensorflow_quantum ./scripts
 echo -e "Done! \nDoing notebook formatting..."
 python3 ./scripts/format_ipynb.py
 echo -e "Done! \nDoing C++ formatting..."

scripts/format_check.sh

@@ -72,7 +72,7 @@ for changed_file in ${changed_files}; do
     )
     if [[ "${changed_line_ranges}" != "--lines=0-0 " ]]; then
         # Do the formatting.
-        results=$(yapf --style=google --diff "${changed_file}" ${changed_line_ranges})
+        results=$(python3 -m yapf --diff "${changed_file}" ${changed_line_ranges})
 
         # Print colorized error messages.
         if [ ! -z "${results}" ]; then