Add a new application parameter manager (closes #3478)

Add a new class to handle parameter management
Add TAUFU associated
Add a test suite to unit test (refs #3478)

Add TestApplicationParameterManeger to unit test list
Update getParameter (refs #3478)

get(*)ParameterValue return null if application or parameter doesn't exist
Update PU (refs #3478)

Update PU to use a mock application instead of ONEFAM
Merge pull request #601 from cbonnissent/3.2I3478

Add a new application parameter manager (closes #3478)