add first source and waf build script

wscript

@@ -0,0 +1,25 @@
+def options(opt):
+    opt.load("compiler_c")
+    opt.load("vala")
+
+def configure(conf):
+    conf.load("compiler_c")
+    conf.load("vala")
+    conf.check_cfg(
+            package = "glib-2.0",
+            uselib_store = "GLIB",
+            mandatory = 1,
+            args = "--cflags --libs")
+    conf.check_cfg(
+            package = "gtk+-3.0",
+            uselib_store = "GTK",
+            mandatory = 1,
+            args = "--cflags --libs")
+
+def build(bld):
+    bld.program(
+            packages = "gtk+-3.0",
+            target = "vala-file-chooser",
+            uselib = "GTK GLIB",
+            source = bld.path.ant_glob("src/**/*.vala")
+    )