Add import and export profile functionality #586

Job	Run time
ci / check if job needs to run	6s
ci / prepare test matrix	12s
ci / MOODLE_310_STABLE - pgsql - php 7.2 - tool_excimer	3m 30s
ci / MOODLE_311_STABLE - mariadb - php 7.3 - tool_excimer	3m 13s
ci / MOODLE_35_STABLE - mariadb - php 7.1 - tool_excimer	3m 20s
ci / MOODLE_35_STABLE - pgsql - php 7.1 - tool_excimer	2m 44s
ci / MOODLE_35_STABLE - mariadb - php 7.2 - tool_excimer	3m 19s
ci / MOODLE_35_STABLE - pgsql - php 7.2 - tool_excimer	2m 47s
ci / MOODLE_36_STABLE - mariadb - php 7.1 - tool_excimer	3m 16s
ci / MOODLE_37_STABLE - pgsql - php 7.2 - tool_excimer	3m 10s
ci / MOODLE_38_STABLE - mariadb - php 7.3 - tool_excimer	3m 39s
ci / MOODLE_39_STABLE - pgsql - php 7.2 - tool_excimer	3m 19s
ci / MOODLE_39_STABLE - mariadb - php 7.2 - tool_excimer	3m 34s
ci / MOODLE_39_STABLE - mariadb - php 7.3 - tool_excimer	3m 24s
ci / MOODLE_39_STABLE - pgsql - php 7.3 - tool_excimer	3m 19s
ci / MOODLE_400_STABLE - pgsql - php 7.3 - tool_excimer	3m 20s
ci / MOODLE_401_STABLE - pgsql - php 7.4 - tool_excimer	3m 13s
ci / MOODLE_401_STABLE - mariadb - php 8.0 - tool_excimer	3m 34s
ci / MOODLE_401_STABLE - mariadb - php 7.4 - tool_excimer	3m 33s
ci / MOODLE_401_STABLE - pgsql - php 8.0 - tool_excimer	3m 54s
ci / Release to the Moodle plugin directory	0s
	1h 0m 26s

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