Used *.c extension and lower case dir name

diff --git a/examples/Input/TouchScreen/Makefile b/examples/input/touch-screen/Makefile
similarity index 100%
rename from examples/Input/TouchScreen/Makefile
rename to examples/input/touch-screen/Makefile

diff --git a/examples/input/touchscreen/source/main.c b/examples/input/touch-screen/source/main.c
similarity index 100%
rename from examples/input/touchscreen/source/main.c
rename to examples/input/touch-screen/source/main.c