Make full example modules (issue #20)

This version introduces multiple enhancements:

added structure for breadcrumbs
changes for code display

Details of additions/deletions below:
--------------------------------------------------------------

Added:      /BLUE_FRAMEWORK/elements/layouts/examples/breadcrumbs.html
            -- Added --
                created base structure for breadcrumbs display

Modified:   /BLUE_FRAMEWORK/modules/example_generate/layouts/index.html
            -- Updated --
                changed structure to handle pre-code

Modified:   /BLUE_FRAMEWORK/cfg/tree.xml
            -- Added --
                loading main module for example page with breadcrumbs parameter

Modified:   /BLUE_FRAMEWORK/elements/layouts/examples/example.html
            -- Added --
                breadcrumbs marker