python/visu [FEATURE]: provide Makefile to support editing

src/python/visu/Makefile

+# this is <Makefile>
+# ----------------------------------------------------------------------------
+# 
+# Copyright (c) 2019 by Thomas Forbriger (BFO Schiltach) 
+# 
+# support editing in python/visu
+# 
+# REVISIONS and CHANGES 
+#    21/01/2019   V1.0   Thomas Forbriger
+# 
+# ============================================================================
+#
+
+all:
+
+flist: Makefile $(wildcard *.py) COPYING README
+	echo $^ | tr ' ' '\n' | sort > $@
+
+.PHONY: edit
+edit: flist; vim $<
+
+.PHONY: clean
+clean: ; 
+	-find . -name \*.bak | xargs --no-run-if-empty /bin/rm -v
+	-/bin/rm -vf flist
+
+
+# ----- END OF Makefile -----