Show progress bar in fill output

This patch uses the progressing crate to display a progress bar for the
fill command if the output is printed to a TTY.

1 files changed, 3 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index ad85e4a..e7f9908 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -53,6 +53,9 @@ version = "0.1"
 [dependencies.nitrokey]
 version = "0.7.1"
 
+[dependencies.progressing]
+version = "3.0.2"
+
 [dependencies.serde]
 version = "1.0"
 features = ["derive"]