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/miniz/CMakeLists.txt

@@ -0,0 +1,14 @@
+project(miniz)
+cmake_minimum_required(VERSION 2.6)
+
+add_library(miniz STATIC
+    miniz.h
+    miniz_common.h
+    miniz_tdef.h
+    miniz_tinfl.h
+    miniz_zip.h
+    miniz.cpp
+    miniz_tdef.cpp
+    miniz_tinfl.cpp
+    miniz_zip.cpp
+)