team: add new options like link_watch_policy (jsc#PED-7183)

[cfconrad]

This implements the following new teamd options:

• TEAM_LINK_WATCH_POLICY => link_watch_policy
• TEAM_LW_ARP_PING_VLANID => link_watch.vlanid
• TEAM_NOTIFY_PEERS_COUNT => notify_peers.count
• TEAM_NOTIFY_PEERS_INTERVAL => notify_peers.interval
• TEAM_MCAST_REJOIN_COUNT => mcast_rejoin.count
• TEAM_MCAST_REJOIN_INTERVAL => mcast_rejoin.interval
• TEAM_DEBUG_LEVEL => debug_level

[cfconrad]

After verbal discussion, we decided to postpone this additional check for TEAM_LW_ARP_PING_INTERVAL and TEAM_LW_NSNA_PING_INTERVAL (https://github.com/openSUSE/wicked/pull/1000/commits/7b5961316392e43111c21629d9c9c00b54c84004) as it is not needed with latest libteam 1.32