* SE server implementation with Weld SE CDI support;
* updated BOM.

* Factored out all components unrelated to Weld from cdi-weld to new
project cdi-common;
* Created new project cdi-weld-se that incapsulates Weld SE support;
* Updated server-se with these changes;
* Updated parent and BOM pom.xml with new projects.

* Merged kumuluz-se-server to kumuluzee-cdi-weld-se and removed the
former.
* Removed corresponding projects from parent and BOM pom.xml

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