add the "SubSolarMass" Label to the Injection Events uploaded via Event Uploader

To distinguish the injection events of SSM and injection events of all-sky in GraceDB, we add a "SubSolarMass" to SSM injection events.

gstlal-inspiral/bin/gstlal_ll_inspiral_event_uploader

@@ -526,13 +526,20 @@ class EventUploader(events.EventProcessor):
 		# upload event
 		for attempt in range(1, self.retries + 1):
 			try:
+				# add labels
+				labels = []
+				if self.is_injection_job:
+					labels.append('SUBSOLAR_MASS')
+				if 'apply_snr_optimized_label' in event['favored'] and event['favored']['apply_snr_optimized_label']:
+					labels.append('SNR_OPTIMIZED') # don't apply the SNR_OPTIMIZED label for skymap optimizer events
+
 				resp = self.client.createEvent(
 					self.gracedb_group,
 					self.gracedb_pipeline,
 					'coinc.xml',
 					filecontents = event['favored']['coinc'],
 					search = self.gracedb_search,
-					labels = 'SNR_OPTIMIZED' if 'apply_snr_optimized_label' in event['favored'] and event['favored']['apply_snr_optimized_label'] else None, # don't apply the SNR_OPTIMIZED label for skymap optimizer events
+					labels = labels if labels else None,
 				)
 			except HTTPError as resp:
 				logger.warning(resp)