Bumped version to v1.5.6.

Author: Paebbels

pyTooling/TerminalUI/__init__.py

@@ -40,7 +40,7 @@
 __email__ =     "Paebbels@gmail.com"
 __copyright__ = "2007-2021, Patrick Lehmann"
 __license__ =   "Apache License, Version 2.0"
-__version__ =   "1.5.5"
+__version__ =   "1.5.6"
 __keywords__ =  ["terminal", "shell", "text user interface", "TUI", "console", "message logging"]