initial commit

gssbuffer - a wrapper around a gssapi security buffer
gsscontext - wrapper around gssapi context, currently provides
    functions to initialize context and wrap/unwrap messages
gssmech - a stub class for gss_oid mechanism types
gssname - a wrapper around gss_name, conveniently initialize
    with strings or char *
gsscredential - currently just a stub

contains a rough base for autotools