Adding certificate encoder decoder tool (#803)
* Adding certificate encoder decoder tool
* Adjusting string checks in CertificateHelper to be case insensitive
Adjusting check for invalid certificate password to compare HResult
Moving certificate errors to LanguageManager
* Updating invalid password error HRESULT to use standard hex notation
* Removing unused variables per PR comments
* Some UI fixes per PR suggestions
* Adding copywright notice for SVG Repo for use with certificate vector