wip for db_migrations for core schema

sql/pgsql/migrations/139.sql

@@ -0,0 +1,13 @@
+begin;
+
+create table ttrss_app_passwords (id serial not null primary key,
+    title varchar(250) not null,
+    pwd_hash text not null,
+    service varchar(100) not null,
+    created timestamp not null,
+    last_used timestamp default null,
+    owner_uid integer not null references ttrss_users(id) on delete cascade);
+
+update ttrss_version set schema_version = 139;
+
+commit;