[#51148043] Adding textfile & txt files for pkging
[#51148043] Fixing bin folder copy error for es pkg
[#51148043] Adding missing pkg dependency for ex pkg
[#51148043] Fixed the libsigar error for es pkg

Following error was thrown when the file was not copied over to
/usr/share/elasticsearch/lib/sigar folder.
   no libsigar-amd64-linux.so in java.library.path