add RequestTokenParams, AccessTokenParam, VerifierToken Params
add getSig and getOauthHeader
refactor to sig factory
reorg
bunches
include rfc sample test and get to compile.  add GetTokenCommand folder to test project
Include NormalizedParameters Test
pass httpRequest message to sigFactory ctor to aggregate params
push RequestToken down to ParamsBase, All SS.OAuth._Tests passing
include another params test