refactor(stop_filter): apply static analysis

[a-maumau]

Description

This PR is to apply some of the suggestions from linter.

This PR will change the function/method name from camelCase to snake_case.

Tests performed

Used following commands for checking the codes

#!/bin/bash
set -eux

TARGET_DIR=$1

current_dir=$(basename $(pwd))
if [[ ! $current_dir =~ ^(autoware|pilot-auto) ]]; then
    echo "This script must be run in a directory with a prefix of autoware or pilot-auto."
    exit 1
fi

set +eux
export CPLUS_INCLUDE_PATH=/usr/include/c++/11:/usr/include/x86_64-linux-gnu/c++/11:$CPLUS_INCLUDE_PATH
set -eux

fdfind -e cpp -e hpp --full-path ${TARGET_DIR} | xargs -P $(nproc) -I{} cpplint {}
fdfind -e cpp -e hpp --full-path ${TARGET_DIR} | xargs -P $(nproc) -I{} clang-tidy -p build/ {}

Before fixing the code:

...
14239 warnings generated.
/home/masakibaba/autoware/src/universe/autoware.universe/localization/stop_filter/include/stop_filter/stop_filter.hpp:55:8: warning: invalid case style for function 'callbackOdometry' [readability-identifier-naming]
  void callbackOdometry(const nav_msgs::msg::Odometry::SharedPtr msg);
       ^~~~~~~~~~~~~~~~
       callback_odometry
Suppressed 14249 warnings (14238 in non-user code, 11 NOLINT).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
17333 warnings generated.
Suppressed 17344 warnings (17333 in non-user code, 11 NOLINT).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.

Check with cppcheck: (nothing specific)

---

After this PR:

...
14238 warnings generated.
Suppressed 14249 warnings (14238 in non-user code, 11 NOLINT).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
17332 warnings generated.
Suppressed 17343 warnings (17332 in non-user code, 11 NOLINT).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.

Effects on system behavior

Not applicable.

Interface changes

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[SakodaShintaro]

I have confirmed logging_simulator works well.
Look Good To Me