WIP: Moved sources int src/, separated most of the source code from Perl.

The XS was left only for the unit / integration tests, and it links
libslic3r only. No wxWidgets are allowed to be used from Perl starting
from now.

src/avrdude/windows/remove_giveio.bat

@@ -0,0 +1,14 @@
+@set DIRVERNAME=giveio
+
+@loaddrv stop %DIRVERNAME%
+@if errorlevel 2 goto error
+
+@loaddrv remove %DIRVERNAME%
+@if errorlevel 1 goto error
+
+@goto exit
+
+:error
+@echo ERROR: Deinstallation of %DIRVERNAME% failed
+
+:exit