Update module.xcconfig to include simulator flags;

Signed-off-by: Andreas Schacherbauer <andreas.schacherbauer@wikitude.com>
Restructures iOS module folder to include a prebuilt module and a module project;

Signed-off-by: Andreas Schacherbauer <andreas.schacherbauer@wikitude.com>
Updates module.xcconfig to reference the new iOS module folder structure;

Signed-off-by: Andreas Schacherbauer <andreas.schacherbauer@wikitude.com>