hicolliecpptest.cpp: Fix HiCollieCppTest to verify process restart

The previous implementation of HiCollieCppTest used the 'ps -A' command to check if a process had restarted, which was not reliable. This patch adds the creation and removal of a file 'x_collie_watchdog_test_file' in the child process that is monitored, and the test cases now verify the presence and removal of this file to confirm that the process was restarted. Also, this commit updates the build recipe in openharmony-standard_3.0.bb to include the newly created patch file.

Relate-to:#21

Signed-off-by: Kareem Zarka kareem.zarka@huawei.com