Added System.IdentityModel.Tokens.BootstrapContext including tests.
Change unittest to not use the UserNameSecurityTokenHandler base class (as it does not-exist in mono)
Update unit tests for binary serialization
Added serialization of SecurityToken with Handler
Adhere to mono coding guidelines.
more coding style changes
Merge pull request #1315 from rjvdboon/BootstrapContext

Add System.IdentityModel.BootstrapContext to .Net 4.5 profile, fixes #22560