Bugfixes to charger-module and top-up function

Bugfixes:

#116 Pause on chargeamps will not resume
#123 Make sure peaq doesn't stop charger when disabled
elden1337/peaqev-core#30 Top-up allows hours that are over the price-limit
elden1337/peaqev-core#28 Hourselection calculates hours for tomorrow despite lacking prices