Allow Map and List type of payload to log

Signed-off-by: Kalyan <kalyan.menda@whiteskylabs.com>
Merge branch 'master' of git@github.com:kalyanwsl/wsl-usecases.git into mule-instrumentation-system
Signed-off-by: Kalyan <kalyan.menda@whiteskylabs.com>
Merge pull request #35 from kalyanwsl/mule-instrumentation-system

Mule instrumentation system