Add util_ArgParsing test
Add util_ArgParsing test

ArgsManager test coverage for parsing of integer and boolean values is
currently very poor and doesn't give us a way of knowing whether changes to
ArgsManager may unintentionally break backwards compatibility, so this adds a
new test to catch regressions.


Former-commit-id: 93b2298d48b1e4cabb9e8ce0457cbeaf3dea6f5c
syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin