* all logging packages have a custom implmentation for logread,
which is a command that can be invoked to view the logs. Hence,
it makes sense for logmngr to have a logread to accompany it
as well. Support for the same is added via this commit.
* the approach is simplistic and follows syslog-ng with the
slight enhancement of reading the logfile from logmngr uci
* support to generate default uci config for logmngr which is
to write logs to /var/log/messages
* this is a bit of an overkill and not needed. Instead, we can use
option file to have full path to file including file name.
example: /var/log/messages
* other formatting errors and remove unused function in syslog-ng
- add lib script to convert logmngr uci to syslog-ng.conf
- update makefile to install proper lib file
- fix couple of minor bugs found in fluent-bit.sh
- fix fluent-bit makefile to download code from git
