style: Fix PEP8 blank lines issues in Python files

Done with `autopep8 --select=E3,W3`, fixes:

- E301 - Add missing blank line.
- E302 - Add missing 2 blank lines.
- E303 - Remove extra blank lines.
- E304 - Remove blank line following function decorator.
- E309 - Add missing blank line.
- W391 - Remove trailing blank lines.

tools/scripts/addheader.py

@@ -56,7 +56,6 @@ while (fname != ""):
     else:
         text = header.replace("$filename", fsingle)
 
-
     while (l != ""):
         if ((l.find("//") != 0 and l.find("/*") != 0 and l.strip() != "") or bc):
             text += l
@@ -69,4 +68,3 @@ while (fname != ""):
     fr.close()
     # print(text)
     fname = f.readline()
-

tools/scripts/file-hex-array.py

@@ -2,6 +2,7 @@ import binascii
 import os.path
 import sys
 
+
 def tof(filepath):
     with open(filepath, 'r') as f:
         content = f.read()
@@ -15,6 +16,7 @@ def tof(filepath):
     print(os.path.basename(filepath) + ".file created.")
     exit(0)
 
+
 def toa(filepath):
     with open(filepath, 'rb') as f:
         content = f.read()
@@ -28,6 +30,7 @@ def toa(filepath):
     print(os.path.basename(filepath) + ".array created.")
     exit(0)
 
+
 def usage():
     print("========================================================\n\
 #\n\

tools/scripts/make_bmfhdr.py

@@ -33,7 +33,6 @@ while(l != ""):
         s = x.split("=")
         d[s[0]] = s[1]
 
-
     if (t == "common"):
         font_height = d["lineHeight"]
         font_ascent = d["base"]
@@ -49,8 +48,6 @@ while(l != ""):
         font_chars.append(d["xadvance"])
         font_cc += 1
 
-
-
     l = f.readline()
 
 

tools/scripts/make_glwrapper.py

@@ -87,7 +87,6 @@ for x in (range(len(sys.argv) - 1)):
             print(funcdata)
 
 
-
 # print(types)
 # print(constants)
 # print(functions)
@@ -177,7 +176,3 @@ for x in functions:
 f.write("\n\n")
 f.write("}\n")
 f.write("\n\n")
-
-
-
-

tools/scripts/makeargs.py

@@ -64,7 +64,6 @@ text = """
 """
 
 
-
 for i in range(1, 8):
 
     tp = ""
@@ -81,8 +80,3 @@ for i in range(1, 8):
 
     t = text.replace("$argtp", tp).replace("$argp", p).replace("$argt", t).replace("$num", str(i))
     print(t)
-
-
-
-
-

tools/scripts/svgs_2_pngs.py

@@ -73,7 +73,6 @@ def export_icons():
             svg_to_png(source_path, theme_dir_base + theme_out_icon_name, 90)
 
 
-
 def export_theme():
     svgs_path = theme_dir_source
     file_names = [f for f in listdir(svgs_path) if isfile(join(svgs_path, f))]