Skip native compilation when testing bundled SDK (#185)

When testing against an `SDK` that already includes `OpenJCEPlus` there
is no reason to compile the native libraries as they are already
included in the runtime. We should skip the native compilation and make
use of the library included in the `SDK`` itself.

Signed-off-by: Jason Katonica <katonica@us.ibm.com>

Author: jasonkatonica

pom.xml

@@ -196,6 +196,8 @@
             </activation>
             <properties>
               <test.compilation.export.target>ALL-UNNAMED</test.compilation.export.target>
+              <skip.native.compile>true</skip.native.compile>
+              <build.native.file>None_not_really_used_here</build.native.file>
             </properties>
             <build>
               <plugins>
@@ -309,6 +311,7 @@
                     <goal>exec</goal>
                   </goals>
                   <configuration>
+                    <skip>${skip.native.compile}</skip>
                     <environmentVariables>
                       <PLATFORM>${build.platform.value}</PLATFORM>
                     </environmentVariables>