add initial waf build script and source

src/svi.cc

@@ -0,0 +1,8 @@
+#include <iostream>
+
+using namespace std;
+
+int main(int argc, char * argv[])
+{
+    cout << "Hello there." << endl;
+}

wscript

@@ -0,0 +1,11 @@
+def options(opt):
+    opt.load("compiler_cxx")
+
+def configure(cnf):
+    cnf.load("compiler_cxx")
+
+def build(bld):
+    bld(features = "cxx cxxprogram",
+        target = "svi",
+        source = bld.path.ant_glob("src/**/*.cc"),
+        cflags = ["-Wall"])