Shaded slf4j-jdk14 to work with simba driver's shaded slf4j-api

[nvoxland]

Description

When running Liquibase with the simba driver, we get a:

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.

warning.

The way it is supposed to work is that you just have to add the slf4j binding jar you want. In our case, add the jar from https://mvnrepository.com/artifact/org.slf4j/slf4j-jdk14/ to your liquibase lib directory.

BUT: the datastax simba driver has shaded the slf4j dependency into a com.simba.cassandra.shaded.slf4j package and so the normal slf4j logic has been updated to look for a com/simba/cassandra/shaded/slf4j/impl/StaticLoggerBinder.class which is not valid in slf4j-jdk14 and so even with that jar file you get the binding error.

This PR shades the slf4j-jdk14 dependency into the liquibase-cassandra extension using the com.simba.cassandra.shaded.slf4j package so it gets found and the message goes away.

[kevin-atx]

I discussed this with Nathan and agree with the code changes. They fix an inherent problem in the Simba driver that broke support for login. This change fixes the problem in the Simba drive and it enables logging to work for Liquibase users.