Add types for missing requests

[zagi]

Missing types for requests:

• <hello>
• <login>
• <logout>
• <poll>
• <domain:check>
• <domain:create>
• <domain:info>
• <domain:update>
• <domain:transfer>
• <domain:renew>
• <domain:delete>
• <host:check>
• <host:create>
• <host:info>
• <host:update>
• <host:delete>
• <contact:check>
• <contact:create>
• <contact:info>
• <contact:update>
• <contact:delete>
• <future:check>
• <future:create>
• <future:info>
• <future:update>
• <future:transfer>
• <future:renew>
• <future:delete>