Implemented unit testing in gitlab CI/CD pipeline

Contributors: If you run unit tests locally, you will need to import Server/db_exports/testuser.sql to set up the unit test user in your local database server (or change the credentials used for unit testing in Server/src/test/resources/test.conf)

Server/db_exports/global.sql

@@ -1,3 +1,7 @@
+CREATE DATABASE global;
+
+USE global;
+
 -- phpMyAdmin SQL Dump
 -- version 5.0.2
 -- https://www.phpmyadmin.net/

Server/db_exports/testuser.sql

@@ -0,0 +1,2 @@
+CREATE USER IF NOT EXISTS 2009scapetest@localhost IDENTIFIED BY '2009scapetest';
+GRANT ALL PRIVILEGES ON global.* TO 2009scapetest@localhost;