add template registry #530

Job	Run time
Lint	37s
Floating Dependencies (ubuntu-latest, chrome)	1m 42s
Tests (ubuntu-latest, chrome)	1m 4s
Floating Dependencies (ubuntu-latest, firefox)	1m 15s
Tests (ubuntu-latest, firefox)	1m 6s
Tests - ember-lts-3.28	1m 38s
Tests - ember-lts-4.4	1m 31s
Tests - ember-lts-4.8	1m 36s
Tests - ember-lts-4.12	1m 25s
Tests - ember-5.0	1m 31s
Tests - ember-release	1m 25s
Tests - ember-default	1m 33s
Tests - tsc	32s
Tests - embroider-safe	1m 36s
Tests - embroider-optimized	1m 37s
Tests - ember-beta	1m 31s
Tests - ember-canary	1m 33s
	23m 12s

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