Added support for directory assembly dependencies.  Related to SONARFXCOP-9
Merge remote-tracking branch 'kashingl/FxCop-directory-for-assembly-dependencies' into MyDevelopmentBranch

Conflicts:
	sonar-csharp-plugin/src/test/java/org/sonar/plugins/csharp/core/CSharpFxCopProviderTest.java
fix merge issue