Remove the externallib dependency #61

Job	Run time
ci / check if job needs to run	4s
ci / prepare test matrix	12s
ci / MOODLE_310_STABLE - pgsql - php 7.2 - auth_userkey	2m 56s
ci / MOODLE_33_STABLE - mariadb - php 7.1 - auth_userkey	3m 40s
ci / MOODLE_34_STABLE - pgsql - php 7.1 - auth_userkey	2m 23s
ci / MOODLE_311_STABLE - mariadb - php 7.3 - auth_userkey	3m 4s
ci / MOODLE_35_STABLE - mariadb - php 7.1 - auth_userkey	2m 43s
ci / MOODLE_35_STABLE - mariadb - php 7.2 - auth_userkey	2m 38s
ci / MOODLE_35_STABLE - pgsql - php 7.1 - auth_userkey	2m 10s
ci / MOODLE_35_STABLE - pgsql - php 7.2 - auth_userkey	2m 10s
ci / MOODLE_36_STABLE - mariadb - php 7.1 - auth_userkey	2m 15s
ci / MOODLE_37_STABLE - pgsql - php 7.2 - auth_userkey	2m 39s
ci / MOODLE_38_STABLE - mariadb - php 7.3 - auth_userkey	2m 48s
ci / MOODLE_39_STABLE - mariadb - php 7.2 - auth_userkey	2m 56s
ci / MOODLE_39_STABLE - mariadb - php 7.3 - auth_userkey	2m 40s
ci / MOODLE_39_STABLE - pgsql - php 7.3 - auth_userkey	2m 33s
ci / MOODLE_400_STABLE - pgsql - php 7.3 - auth_userkey	3m 8s
ci / MOODLE_39_STABLE - pgsql - php 7.2 - auth_userkey	2m 40s
ci / MOODLE_401_STABLE - pgsql - php 7.4 - auth_userkey	3m 14s
ci / MOODLE_401_STABLE - mariadb - php 7.4 - auth_userkey	3m 23s
ci / MOODLE_401_STABLE - pgsql - php 8.0 - auth_userkey	3m 21s
ci / MOODLE_401_STABLE - mariadb - php 8.0 - auth_userkey	3m 17s
ci / Release to the Moodle plugin directory	0s
	56m 54s

Provide feedback