HardwareTimer: Add API to check whether timer/channels are running#1550

fpistm merged 1 commit intostm32duino:mainstm32duino/Arduino_Core_STM32:mainfrom

ABOSTM:HT_API_RUNNING_TIMER_CHANNELABOSTM/Arduino_Core_STM32:HT_API_RUNNING_TIMER_CHANNELCopy head branch name to clipboard