Catch or silence all warnings in test cases

Catch or silence all warnings in test cases
Added Test::NoWarnings to make sure warnings in the future cause a test failure
Integrated fields with Inflation code
Moved use_ok/require statements in test cases into BEGIN block.  Class::Std needs to be run from a BEGIN block only.
Removed redundant methods from Validate libraries.  Further simplification of API is warranted.
Removed RESTRICTIVE attribute from methods in Validate/Field libraries.  Impossible for sibling classes to access methods, only parent or child.