Adding backends filwe with backends config

Signed-off-by: José Luis Di Biase <josx@interorganic.com.ar>
Moving to iobackends to mbc-common

Signed-off-by: José Luis Di Biase <josx@interorganic.com.ar>
Merge pull request #26 from inaes-tic/iobackends2common_review

Iobackends2common review