[sequencechart] added binaries and build system additions
- added binaries of GUI enhancements - nativelibs Linux64 and jar - sequencechart jar- added build target install-plugins for copying binaries to target dirs- updated .gitignore
[sequencechart] build system upate
Added a make target nativelibs to the root Makefile. Updated READMEaccordingly.
Initial import of Horizon 4 release.