Tune ObjC clang-format configuration

This CL sets some options for ObjC in the .clang-format file to closer
match our style guide.

NOTRY=True
BUG=webrtc:7406

Review-Url: https://codereview.webrtc.org/2869593002
Cr-Commit-Position: refs/heads/master@{#18092}

Author: Hnoo112233

.clang-format

@@ -6,5 +6,16 @@ Language: Java
 BasedOnStyle: Google
 ---
 Language: ObjC
-ColumnLimit: 100
 BasedOnStyle: Google
+BinPackParameters: false
+BinPackArguments: false
+ColumnLimit: 100
+ObjCBlockIndentWidth: 2
+AllowAllParametersOfDeclarationOnNextLine: true
+AlignOperands: false
+AlwaysBreakBeforeMultilineStrings: false
+AllowShortFunctionsOnASingleLine: Inline
+BreakBeforeTernaryOperators: false
+IndentWrappedFunctionNames: true
+ContinuationIndentWidth: 4
+ObjCSpaceBeforeProtocolList: true