[GREEN] adding implementation for fileManagementUtil.py

app/utils/fileManagementUtil.py

-def get_random_filename():
-    return
+import tempfile, random, datetime, string, hashlib,os
+import PIL.Image as Image
+
+def get_random_filename(f_name):
+    ext = f_name.split(".")[-1]
+    name = ''.join(random.choices(string.ascii_lowercase , k=4))
+    name += hashlib.md5((datetime.datetime.now().isoformat() + f_name).encode()).hexdigest()
+
+    name = name + "." + ext
+    return name
+
+def remove_image_exifdata(f_path):
+    img = Image.open(f_path)
+    img.save(f_path)
+    return   
+
 
-def remove_image_exifdata():
-    return