fix get_mode(), introduce RunStatus

[jkt628]

• introduce RunStatus and WorkMode
• Modes are properly taken from getGatewayTouListV2
• introduce artificial operating modes like VPP_MODE
• fix get_mode, time_of_use, self_consumption and emergency_backup
• introduce set_backup_reserve

[jkt628]

contrast with #37

[richo]

I merged #44, nothing personal I just found it a little easier to read. Could you rebase out the RunStatus stuff though? I would really like to merge it but as you're surely aware I have been struggling to find time to devote to this project so I'm doing my best to lean on contributors :)

[jkt628]

Could you rebase out the RunStatus stuff though?

no, i rely on it for https://github.com/jkt628/homeassistant-franklinwh/tree/greatest which i have run well for months and would lose many useful automations.

I have been struggling to find time to devote to this project

i realized that months ago but was still hopeful; unfortunately, the burden you place on contributors by inaction is too great and i have let you know this privately time and again. i will continue to monitor this project but will shift my focus to maintaining my own forks at https://github.com/jkt628/franklinwh-python and https://github.com/jkt628/homeassistant-franklinwh.