Ember cli string helpers replacement #7667

Job	Run time
Build (20, frontend)	1m 40s
Build (20, test-app)	1m 14s
Build (20, lti-course-manager)	1m 11s
Build (20, lti-dashboard)	1m 15s
Lint	1m 15s
Test Deploy Build (20, frontend)	1m 57s
Test Deploy Build (20, lti-course-manager)	1m 15s
Test Deploy Build (20, lti-dashboard)	1m 9s
Test (20, frontend)	4m 48s
Test (20, test-app)	2m 13s
Test (20, lti-course-manager)	53s
Test (20, lti-dashboard)	51s
Upload Coverage	10s
Scan with UCSF SonarQube	28s
	20m 19s

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