Feature: libcrmcommon: Add fence_params capability

Add pcmk_ra_cap_fence_params. This represents the capability to use:

• pcmk_<action>_{action,retries,timeout}
• pcmk_action_limit
• pcmk_delay_{base,max}
• pcmk_host_{argument,check,list,map}
• Related options that may be added later

Signed-off-by: Reid Wahl <nrwahl@protonmail.com>