Add rrdd-plugin-legacy to build

Signed-off-by: John Else <john.else@citrix.com>
Split libraries and binaries

Signed-off-by: John Else <john.else@citrix.com>
Export OCAMLFIND_DESTDIR before installing

Signed-off-by: John Else <john.else@citrix.com>
Build all libraries before building the output RPMs

Signed-off-by: John Else <john.else@citrix.com>