Use the log_path clang sanitizer (ASAN/TSAN/etc.) option to put errors in a separate file

[mbautin]

Jira Link: DB-5018
Putting sanitizer errors in a separate file (with a name that can be matched to the process, e.g. ts-1 or m-2) will allow us to parse / display those warnings more easily and detect test failures based on that.

[mbautin]

This could be done using the log_path option: https://github.com/google/sanitizers/wiki/SanitizerCommonFlags

Flag	Description
log_path	Write logs to "log_path.pid". The special values are "stdout" and "stderr". The default is "stderr".
log_exe_name	Mention name of executable when reporting error and append executable name to logs (as in "log_path.exe_name.pid").

This is becoming important due to large test output files produced without this, e.g.

$ wc -c ./java/yb-cql/target/surefire-reports_org.yb.cql.TestDecimalDataType__testDecimalDataTypeSum/org.yb.cql.TestDecimalDataType-output.txt
567903392 ./java/yb-cql/target/surefire-reports_org.yb.cql.TestDecimalDataType__testDecimalDataTypeSum/org.yb.cql.TestDecimalDataType-output.txt

with the same TSAN error repeated over and over.