ENH Refactor TagField from class to functional component #142

Job	Run time
CI / Context	2s
CI / Generate matrix	19s
CI / Check governance	3s
CI / 8.4 mysql84 phpunit all	2m 18s
CI / 8.3 mysql80 phpunit all	2m 13s
CI / 8.3 prf-low mariadb phpunit all	2m 11s
CI / 8.3 mysql80 js	5m 15s
CI / 8.3 mysql80 phplinting	2m 9s
CI / 8.3 mysql80 doclinting	3m 31s
CI / Dispatch tag patch release	0s
	18m 1s

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