Created class to handle OAuth Header generation using crenna oauth for GET requests only
Now signs get request using Authorization header, but not with user tokens
Fully implemented GET oauth via headers, cleaned up tests and added OAuthHeaderData to encapsulate params for creating OauthHeaders
Merge branch 'oauth-headers' of github.com:gregsochanik/SevenDigital.Api.Wrapper
Pass request parameters dictionary into Crenna oauth signer to make sure parameters are used to created the signature
Merge pull request #123 from gregsochanik/oauth-headers

Use Oauth headers for GET request