major refactor to wrap retieval of macros all around ISymbianBuildContext, to avoid need to access internal apis. Added getTargetTypeMacro(String targettype),
List<IDefine> getMetadataMacros(), List<IDefine> getBuildMacros().
<?xml version="1.0" encoding="UTF-8"?>
<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0" immediate="true" name="com.nokia.carbide.cpp">
<implementation class="com.nokia.carbide.cpp.p2.CarbideP2Policy"/>
<service>
<provide interface="org.eclipse.equinox.p2.ui.Policy"/>
</service>
<property name="service.ranking" type="Integer" value="100"/>
</scr:component>