Resolve "test_files solution is temporary"

Closes #59 (closed)

I have added the toolbox.TestFiles repository as a submodule. I think this means that people can checkout wetb without getting all the test files.

To get the test files you need to git.exe submodule update --init

Test files are accessed via

filename = get_test_files("my_test_file.txt")

get_test_files will first look for <current folder>/test_files/my_test_file.txt and return the full filename. You can also specify the full path

If the file is too big run:

wetb.utils.test_files.move2test_files("my_test_file.txt")

which moves it to the same relative folder inside the ./WindEnergyToolbox/TestFiles/", and it will still be accessible via filename = get_test_files("my_test_file.txt") which now returns the new full filename as the old does not exist anymore

wetb/utils/test_files.py

@@ -5,11 +5,8 @@ Created on 20. jul. 2017
 '''
 import os
 import wetb
-import urllib.request
-from fileinput import filename
 import inspect
 wetb_rep_path = os.path.join(os.path.dirname(wetb.__file__), "../")                                   
-default_TestFile_rep_path=os.path.join(os.path.dirname(wetb.__file__) + "/../../TestFiles/")
 
 def get_test_file(filename):
     if not os.path.isabs(filename):
@@ -20,14 +17,12 @@ def get_test_file(filename):
     if os.path.exists(filename):
         return filename
     else:
-        wetb_rep_path = os.path.join(os.path.dirname(wetb.__file__), "../")
         return os.path.join(wetb_rep_path, 'TestFiles', os.path.relpath(filename, wetb_rep_path))
         
 
 
 
-def move2test_files(filename,TestFile_rep_path=default_TestFile_rep_path):
-    wetb_rep_path = os.path.join(os.path.dirname(wetb.__file__), "../")
+def move2test_files(filename):
     dst_filename = os.path.join(wetb_rep_path, 'TestFiles', os.path.relpath(filename, wetb_rep_path))
     folder = os.path.dirname(dst_filename)
     if not os.path.exists(folder):