Add a test for Windows console application with main function in a library

Currently, this test fails for ninja/VisualC, as we don't pass
/SUBSYSTEM:CONSOLE to the linker, and it guesses wrongly that this is a GUI
app

https://lists.freedesktop.org/archives/mesa-dev/2018-June/197844.html

test cases/windows/17 gui app/console_prog.c

@@ -0,0 +1,3 @@
+int main(int argc, char **argv) {
+    return 0;
+}

test cases/windows/17 gui app/meson.build

@@ -0,0 +1,9 @@
+project('gui_app_test', 'c')
+
+#
+# test that linking a Windows console applications with the main function in a
+# library is correctly instructed which entrypoint function to look for
+#
+
+console_lib = static_library('main', 'console_prog.c')
+executable('console', 'dummy.c', link_with: console_lib, gui_app: false)