Rename ground temperature columns in SQL schema

Author: pierrepetersmeier

src/test/resources/edu/ie3/datamodel/io/sink/_sql/time_series.sql

@@ -99,13 +99,13 @@ CREATE TABLE public.time_series_weather
     direction DOUBLE PRECISION,
     temperature DOUBLE PRECISION,
     velocity DOUBLE PRECISION,
-    ground_temperature_value_one DOUBLE PRECISION,
-    ground_temperature_value_two DOUBLE PRECISION,
+    ground_temperature_level_1 DOUBLE PRECISION,
+    ground_temperature_level_2 DOUBLE PRECISION,
     grid_uuid UUID NOT NULL REFERENCES grids(uuid)
 )
     WITHOUT OIDS
     TABLESPACE pg_default;
 
 CREATE INDEX time_series_weather_series_id ON time_series_weather USING hash (time_series);
 
-CREATE UNIQUE INDEX time_series_weather_series_time ON time_series_weather USING btree (time_series, time);
+CREATE UNIQUE INDEX time_series_weather_series_time ON time_series_weather USING btree (time_series, time);