add dem env files

env/dem.env

+COLLECTION=DEM
+UPLOAD_CONTAINER=dem-data
+
+GDAL_DISABLE_READDIR_ON_OPEN=TRUE
+CPL_VSIL_CURL_ALLOWED_EXTENSIONS=.TIF,.tif,.xml

env/dem_preprocessor.env

+SPLIT_PARTS_CHECK=False
+DATA_FILE_SIZE_LIMIT=100000
+FILENAME_PART_SKIP=auxraster,preview,support,annotation,auxfiles
+PREPROCESSOR_REPLACE=TRUE
+FORCE_NO_DATA_VALUE=0
\ No newline at end of file

env/dem_redis.env

+REDIS_HOST=redis
+REDIS_PORT=6379
+
+REDIS_QUEUE_KEY=seed_queue
+
+REDIS_PREPROCESS_QUEUE_KEY=preprocess_queue
+REDIS_REGISTER_QUEUE_KEY=register_queue
+REDIS_REGISTERED_SET_KEY=registered_set
+REDIS_SET_KEY=registered_set
+REDIS_SEED_QUEUE_KEY=seed_queue