UI Pages to be added/updated

[d1str0]

• Navbar

• Login

• Dashboard

• Certificate List

• Certificate Edit
  https://github.com/ImageWare/TLSential/blob/develop/model/certificate.go

• User List

• User Edit
  https://github.com/ImageWare/TLSential/blob/develop/model/user.go

• DNS Config
  https://github.com/ImageWare/TLSential/blob/develop/model/challenge_config.go

• Settings
  https://github.com/ImageWare/TLSential/blob/develop/model/config.go