Add braces to C++ single-line loops and conditionals (NFC) (#2973)

This makes code easier to read and more consistent between C++ and Java.
Also update clang-format settings to always add a line break (even if no braces are used).

wpiutil/src/main/native/cpp/sha1.cpp

@@ -212,7 +212,9 @@ static void buffer_to_block(const unsigned char* buffer,
   }
 }
 
-SHA1::SHA1() { reset(digest, buf_size, transforms); }
+SHA1::SHA1() {
+  reset(digest, buf_size, transforms);
+}
 
 void SHA1::Update(StringRef s) {
   raw_mem_istream is(makeArrayRef(s.data(), s.size()));