Cleanup osg::cacerts::updater and add all cacerts class rspec tests
- Add osg::lcmaps class and removed lcmaps related resources out of osg::bestman class
- Additional parameters added to osg::bestman class
- Use package/file/service pattern for managing bestman resources
- Reorganize templates
- Add more rspec tests
- Add examples for osg::lcmaps and osg::bestman to README