Add KEYWORD.cross,except,intersect

Author: xterao

src/main/java/org/domaframework/doma/intellij/Sql.flex

@@ -30,13 +30,15 @@ import org.domaframework.doma.intellij.psi.SqlTypes;
       "case",
       "check",
       "create",
+      "cross",
       "default",
       "delete",
       "desc",
       "distinct",
       "drop",
       "else",
       "end",
+      "except",
       "exists",
       "foreign",
       "from",
@@ -48,6 +50,7 @@ import org.domaframework.doma.intellij.psi.SqlTypes;
       "index",
       "inner",
       "insert",
+      "intersect",
       "into",
       "is",
       "join",