DCS func load next mission

Environment:	Server
Function:	load_next_mission		Added with: 2.5.0
Member Of:	net
Syntax:	boolean net.load_next_mission( )
Description:	Load the next mission from the server mission list. Returns false if at the end of list.
Return Value:	boolean
Return Example:
Examples:
Related Functions:	Network API: send_chat, send_chat_to, recv_chat, load_mission, load_next_mission, get_player_list, get_my_player_id, get_server_id, get_player_info, kick, get_stat, get_name, get_slot, set_slot, force_player_slot, lua2json, json2lua, dostring_in, log, trace
Notes: