Tpmstream

* Fix several bugs
* Support parameter encryption
* Add input format `hex`
* Add command `type` for auto-detecting data type from data

Work around https://bugs.python.org/issue14156

* added proper error handling when parsing binary (using InfoEvents)
* add type support to `example`, e.g. `tpmstream example TPMS_CREATION_DATA`
* add type support to `convert`, e.g.
* `printf "\x00\x03ABC" | tpmstream convert --type TPM2B_IV --in=binary -`
* `printf "80010000000f000000000003ac4772" | xxd -r -p | tpmstream co --type Response --command GetRandom --in=binary -`