Support excluding all dependencies in pom

[jtgrabowski]

The idea here is that when exclude contains wildcards for
organisation and name than the dependency is inTransitive.

This:

<dependency>
    <groupId>x</groupId>
    <artifactId>y</artifactId>
    <version>z</version>
    <exclusions>
        <exclusion>
            <artifactId>*</artifactId>
            <groupId>*</groupId>
        </exclusion>
    </exclusions>
</dependency>

Before change was translated to:

<dependency org="x" name="y" rev="z" force="true" transitive="true"
conf="compile->compile(*),master(compile);runtime->runtime(*)">
    <exclude org="*" module="*" name="*" type="*" ext="*" conf=""
matcher="exact"/>
</dependency>

And now it is translated to:

<dependency org="x" name="y" rev="z" force="true" transitive="false"
conf="compile->compile(*),master(compile);runtime->runtime(*)"/>

[lightbend-cla-validator]

Hi @jtgrabowski,

Thank you for your contribution! We really value the time you've taken to put this together.

Before we proceed with reviewing this pull request, please sign the Typesafe Contributors License Agreement:

http://www.lightbend.com/contribute/cla

[dwijnand]

LGTM

[eed3si9n]

Awesome

[dwijnand]

@jtgrabowski I ran a local publish of this with your test in sbt/sbt#2713, and it worked!

Excellent job and thank you for contributing. Merging.