Fixing UserList test logic and adding clear method to reset the list

.gitlab-ci.yml

.gradle/6.8/executionHistory/executionHistory.bin

.gradle/6.8/executionHistory/executionHistory.lock

.gradle/6.8/fileHashes/fileHashes.bin

.gradle/6.8/fileHashes/fileHashes.lock

.gradle/6.8/fileHashes/resourceHashesCache.bin

.gradle/6.8/javaCompile/classAnalysis.bin

.gradle/6.8/javaCompile/jarAnalysis.bin

.gradle/6.8/javaCompile/javaCompile.lock

.gradle/6.8/javaCompile/taskHistory.bin

.gradle/buildOutputCleanup/buildOutputCleanup.lock

...va/main/Softeng/Group3/SiJadwal/repository/UserList.class

build/classes/java/test/UserListTest.class

build/jacoco/test.exec

build/jacocoCsv

...cocoHtml/Softeng.Group3.SiJadwal.repository/UserList.html

...tml/Softeng.Group3.SiJadwal.repository/UserList.java.html

.../jacocoHtml/Softeng.Group3.SiJadwal.repository/index.html

...Html/Softeng.Group3.SiJadwal.repository/index.source.html

build/jacocoHtml/index.html