Add samples to top level of kernel 

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@177347 a5903396-d722-0410-b921-86c7d4935375
Added pom script which install the student features to a given carbon product

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@177348 a5903396-d722-0410-b921-86c7d4935375
Moved internal implementation classes to the private package

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@177349 a5903396-d722-0410-b921-86c7d4935375