Merge upstream changes for windows compatibility

Delete ?test.py cause the name causes issues on windows OS and the contents were only for example data creation

fcn_help/?test.py

-# -*- coding: utf-8 -*-
-"""
-Created on Tue Jul 27 11:40:58 2021
-
-@author: Richter
-"""
-from matplotlib import pyplot as plt
-
-fig_size = (10, 5)
-f = plt.figure(figsize=fig_size)
-
-def plot_signal(time, signal, title='', xlab='', ylab='',
-                line_width=1, alpha=1, color='k',
-                subplots=False, show_grid=True, fig=f):
-
-    # Skipping a lot of other complexity here
-
-    axarr = f.add_subplot(1,1,1) # here is where you add the subplot to f
-    plt.plot(time, signal, linewidth=line_width,
-               alpha=alpha, color=color)
-    plt.set_xlim(min(time), max(time))
-    plt.set_xlabel(xlab)
-    plt.set_ylabel(ylab)
-    plt.grid(show_grid)
-    plt.title(title, size=16)
-    
-    return(f)
-
-time = [0:1:100]
-signal= [200:300:100]
-
-f = plot_signal(time, signal, fig=f)
\ No newline at end of file