* Copied qTESLA-p-I round2 (2019-08-19) code

* Code compiles, NIST-KAT works

* Included detached signature API

* Generated testvectors

* Fixed name in api.h

* code style

* Fixed error in Makefile

* Passing pytest

* Fixing types (uint8_t bytes and size_t indices)

* Replaced SHAKE with SHAKE128 where necessary

* Fixed bug: (signed) integer overflow

* Added qTESLA-p-III

* Code is now independent of machine endianness

* repaired Microsoft makefile