Add support BE7000

[Dskurihin]

Model: RC06

Check list:

xqsystem/login: 🟢 xqsystem/init_info: 🟢 misystem/status: 🟢 xqnetwork/mode: 🟢 xqsystem/vpn_status: 🟢 misystem/topo_graph: 🟢 xqsystem/check_rom_update: 🔴 xqnetwork/wan_info: 🟢 misystem/led: 🟢 xqnetwork/wifi_detail_all: 🟢 xqnetwork/wifi_diag_detail_all: 🟢 xqnetwork/avaliable_channels: 🟢 xqnetwork/wifi_connect_devices: 🟢 misystem/devicelist: 🟢 xqnetwork/wifiap_signal: 🟢 misystem/newstatus: 🟢 xqsystem/reboot: ⚪ xqsystem/upgrade_rom: ⚪ xqsystem/flash_permission: ⚪ xqnetwork/set_wifi: ⚪ xqnetwork/set_wifi_without_restart: ⚪