IR_config_constants: added path to Test archive and use this variable in...

IR_config_constants: added path to Test archive and use this variable in downloadversionIRdata when building an archive path downloadversionIRdata: consistent use of testmode parameter downloadversionIRdata: added testmode to all reading routines allowing reading from Test archive IR_image_tools: no longer sets working directory to script file location IR_config_constants: sets parameter_file_path as absolute path downloadversionIRdata: new function get_trigger_from_PID() wraps get_program_from_PID() and allows getting timestamps for lab data downloadversionIRdata: download_images_by_time_via_png() now uses nanosecond timestamps to call AKF_2.get_time_intervals() downloadversionIRdata: disable DeprecationWarning in import of archivedb (timezone issue on Windows) downloadversionIRdata: get_NUC_by_times() uses the reference cold frame in case no cold frame (NUC frame) was found for this time downloadversionIRdata: unified use of stoptime instead of endtime downloadversionIRdata: expanded testing sections (profile, coldframe, timestamps and scene model)