fixup! Add a clang-format file and prepare for clang-formatting

.clang-format

@@ -1,42 +1,22 @@
-# Copyright 2023 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License"); you may not
-# use this file except in compliance with the License. You may obtain a copy of
-# the License at
-#
-#     https://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations under
-# the License.
-
-Standard: C++03
-BasedOnStyle: Google
-AccessModifierOffset: -2
-AlignConsecutiveMacros: true
-AlignOperands: AlignAfterOperator
-AlignTrailingComments: false
-AllowShortBlocksOnASingleLine: Never
-AllowShortCaseLabelsOnASingleLine: true
-AllowShortIfStatementsOnASingleLine: true
-BreakBeforeBinaryOperators: NonAssignment
-BreakBeforeBraces: Attach
-BreakBeforeTernaryOperators: false
-BreakConstructorInitializers: BeforeColon
-ConstructorInitializerIndentWidth: 2
-ContinuationIndentWidth: 4
-Cpp11BracedListStyle: false
-DerivePointerAlignment: false
-FixNamespaceComments: false
-IncludeBlocks: Preserve
-IndentCaseBlocks: true
-IndentCaseLabels: false
-IndentWrappedFunctionNames: true
-KeepEmptyLinesAtTheStartOfBlocks: true
-NamespaceIndentation: All
-PointerAlignment: Right
-SpaceBeforeCpp11BracedList: true
+---
+Language: Cpp
+BasedOnStyle: Mozilla
+ColumnLimit: 116
 SpacesInParentheses: true
-SpacesInSquareBrackets: true
+AlwaysBreakAfterReturnType: None
+AlwaysBreakAfterDefinitionReturnType: None
+SpaceBeforeCpp11BracedList: true
+BreakBeforeBinaryOperators: All
+Cpp11BracedListStyle: true
+AllowShortBlocksOnASingleLine: Always
+BreakBeforeBraces: Custom
+BraceWrapping:
+  AfterClass: true
+  AfterControlStatement: Never
+  AfterFunction: true
+  AfterStruct: true
+  AfterEnum: true
+  SplitEmptyFunction: false
+  SplitEmptyRecord: false
+  SplitEmptyNamespace: false
+...