Change the style of user blacklist/block APIs, keep it accordant to the RongCloud API path, that is:
Change the style of user blacklist/block APIs, keep it accordant to the RongCloud API path, that is:

rongcloud.user.queryBlocked         -> rongcloud.user.block.query
rongcloud.user.addToBlacklist       -> rongcloud.user.blacklist.add
rongcloud.user.removeFromBlacklist  -> rongcloud.user.blacklist.remove
rongcloud.user.queryBlacklist       -> rongcloud.user.blacklist.query

rongcloud/server-sdk-nodejs,crystaldust/server-sdk-nodejs,coocon/server-sdk-nodejs