Add support for password safes

A password safe (PWS) stores names, logins and passwords in slots.  PWS
are supported both by the Nitrokey Pro and the Nitrokey Storage.  They
are implemented as a struct wrapping a device as the device may not be
disconnected while the password safe is alive.  The creation of a
password safe is handled by the GetPasswordSafe trait, implemented by
DeviceWrapper, Pro and Storage.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/tests/mod.rs b/src/tests/mod.rs
index c2c9f9d..34ca0aa 100644
--- a/src/tests/mod.rs
+++ b/src/tests/mod.rs
@@ -1,3 +1,4 @@
 mod device;
 mod otp;
+mod pws;
 mod util;