Update dependencies and specfile to not claim generic directories, and to allow modules to depend on sysmgr_module_api(version) rather than a precise sysmgr version.

Add an invalid ipmi_ctx_open_outofband_2_0 before spawning threads to bypass a race condition in cryptographic initialization functions within the freeipmi library.

Add a ratelimit_delay variable to the configuration to allow rate limiting of crate-related client API requests.