fix: fileDescription field parsing
OSGi compliant bundle / BC 1.46 dependency
OSGi compliant  BC 1.46 dependency
slf4j version 164 dept (for compliance with older containers)
Merge branch 'master' of github.com:gusto2/accord into gusto2-master

Integration of Gabriel Vince's pull request (@gusto2 github user).
* no need to include BC dependency on top-level **odetteftp** module, so removed from `odetteftp/pom.xml`.
* in the `odetteftp/core/pom.xml` the unsed OSGi import packages (!org.jboss.logging, !com.google.protobuf) were removed; also, in the same plugin declaration, the commented bundle-activation was removed.