Use xb_builder_source_add_simple_adapter instead
xb_builder_source_add_adapter to avoid sniffing MIME type for output xml
contents
Signed-off-by: Daniel Campello <campello@chromium.org>
Change-Id: I123c37339720b5844351f85a5aeb9cec4928785c
Add various fixes to enable us to build a selection of useful USB plugins.
Also, skip tests that don't make sense on WIN32 or that will not work.
With much help from Mario Limonciello <mario.limonciello@dell.com> -- Thanks!