Shib IDPv3 pom.xml

[Edwards, Wendy A]

While attempting to build and run the IDP v3 war from scratch (in the
idp-war directory), I found that I needed to add the two dependencies
below to the pom.xml file to get it to run locally:

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>jcl-over-slf4j</artifactId>
    <version>1.7.12</version>
</dependency>

<dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-classic</artifactId>
    <version>1.1.2</version>
</dependency>