Merge branch 'dev_migration' into 'development'

config.json.example

package.json

script_req.sh

src/libs/api_mongo.txt

src/libs/app.js

src/libs/db/mongoose.js

src/libs/db/postgres.js

src/libs/middlewares/authorize.js

src/libs/middlewares/downloadDatabase.js

src/libs/middlewares/multer.config.js

src/libs/middlewares/oauth2.js

src/libs/middlewares/passport.js

src/libs/models/accessToken.js

src/libs/models/activity.js

src/libs/models/client.js

src/libs/models/download.js

src/libs/models/file.js

src/libs/models/permission.js

src/libs/models/permissionRole.js

src/libs/models/pqr.js