* remove insecure rng providers
and remove the openssl provider. We now rely exclusively on
random_bytes(), as there are no reasons not to. Fix#121
* remove the isSecure property of the test rng class
* remove pointless test rng class
we were testing a test class, which didn't make a lot of sense.
* Revert "remove pointless test rng class"
This reverts commit f6da6bee6d.
* Reapply "remove pointless test rng class"
This reverts commit 06220d4a54.
* assing rng provider to class attribute
this also aligns with other providers
* remove polyfill for hash_equals
Nicolas CARPi
Mark Magyar
Nicolas CARPi
William Hall