Add allVariantsOfUnknownSignificance endpoint to SecurityConfiguration (#1114)

Author: calvinlu3

src/main/java/org/mskcc/cbio/oncokb/config/SecurityConfiguration.java

@@ -114,6 +114,8 @@ public void configure(HttpSecurity http) throws Exception {
             .antMatchers("/api/v1/utils/allActionableVariants.txt").hasAnyAuthority(AuthoritiesConstants.PREMIUM_USER, AuthoritiesConstants.ADMIN)
             .antMatchers("/api/v1/utils/allAnnotatedVariants").hasAnyAuthority(AuthoritiesConstants.PREMIUM_USER, AuthoritiesConstants.ADMIN)
             .antMatchers("/api/v1/utils/allAnnotatedVariants.txt").hasAnyAuthority(AuthoritiesConstants.PREMIUM_USER, AuthoritiesConstants.ADMIN)
+            .antMatchers("/api/v1/utils/allVariantsOfUnknownSignificance").hasAnyAuthority(AuthoritiesConstants.PREMIUM_USER, AuthoritiesConstants.ADMIN)
+            .antMatchers("/api/v1/utils/allVariantsOfUnknownSignificance.txt").hasAnyAuthority(AuthoritiesConstants.PREMIUM_USER, AuthoritiesConstants.ADMIN)
 
             .antMatchers("/api/v1/**").hasAnyAuthority(AuthoritiesConstants.ADMIN)