inject-slf4j: Add inject/inject-slf4j to publishing list
inject-slf4j: Add inject/inject-slf4j to publishing list

Problem

The new module: inject/inject-slf4j was not listed for publishing
thus it would not have been released during the next publish.
Additionally, it publishes no test jar so that configuration can
be removed.

Solution

Add the module to the list of publishable projects in sbt.

RB_ID=872749
TBR=true

twitter/finatra,twitter/finatra,twitter/finatra