Fixes and cleanup

[ckvsoft]

add version number
add bash version info
add skip info for not activated options
fix Venus OS run failure
remove bc
and some stuff i can't remember

[christian1980nrw]

Merged to dev. I will test it before merging to main.

[christian1980nrw]

awk: cmd. line:1: Division by zero @ckvsoft after these commits.

root@raspberrypi4:/data/etc/Spotmarket-Switcher# DEBUG=1 sh controller.sh
I: Bash Version: GNU bash, version 5.0.18(1)-release (arm-ve-linux-gnueabi)
I: Spotmarket-Switcher - Version 2.3.4
[] Loading...Config validation passed.
I: Tibber today-data is up to date.
I: File '/tmp/tibber_tomorrow_prices_sorted.txt' has no tomorrow data, we have to try it again until the new prices are online.
D: No delay of download of Tibber data since DEBUG variable set.
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 2483 100 2321 100 162 7867 549 --:--:-- --:--:-- --:--:-- 8416
awk: cmd. line:1: Division by zero

My main branch version is working.

[ckvsoft]

@christian1980nrw
Fixed #119