Moved write_raster.py to API folder

api/api.py

 import psycopg2
-from flask import Flask, jsonify, request, send_from_directory
+from flask import Flask, jsonify, request
 from flask_cors import cross_origin
 from psycopg2 import sql
 import configparser
 from GetAverageData import get_interpolation_data_for_point, get_year_columns, get_average_of_multiple_years, find_extremum
-from dataacquisition import write_raster
+from api import write_raster
 import SQLPandasTools as s2pTool
 
 cfg = configparser.ConfigParser()