We need this for utilities like `env`, that do not gain anything by parsing the options passed to the command they are supposed to execute.
This adds a very basic test suite for ArgsParser that we can use to set a baseline of functionality that we want to make sure keeps working.
This patch adds some rudimentary tests for InodeWatcher. It tests the basic functionality, but maybe there are corner cases I haven't caught. Additionally, this is our first LibCore test. :^)