refactor(Entity.java): Updated zip sub directory file name check

Replaced endsWith with equals to avoid unwanted matches e.g. stop_areas.txt being used instead of
areas.txt

src/main/java/com/conveyal/gtfs/model/Entity.java

@@ -288,7 +288,7 @@ public void loadTable(ZipFile zip) throws IOException {
                 // check if table is contained within sub-directory
                 while (entries.hasMoreElements()) {
                     ZipEntry e = entries.nextElement();
-                    if (e.getName().endsWith(tableName + ".txt")) {
+                    if (e.getName().equals(tableName + ".txt")) {
                         entry = e;
                         feed.errors.add(new TableInSubdirectoryError(tableName, entry.getName().replace(tableName + ".txt", "")));
                     }

src/test/java/com/conveyal/gtfs/GTFSTest.java

@@ -344,7 +344,7 @@ void canLoadAndExportFaresV2Feed() throws IOException {
     }
 
     /**
-     * Persistence expectations for use with the GTFS contained within the "MBTA_GTFS_Fares_v2.zip" feed.
+     * Persistence expectations for use with the GTFS contained within the "fake-agency-with-fares-v2" feed.
      */
     private final PersistenceExpectation[] faresV2PersistenceExpectations = new PersistenceExpectation[]{
         new PersistenceExpectation(