FIX: Forbid unwrap, expect and panic in the base code

xlsx/src/bin/documentation.rs

@@ -1,3 +1,6 @@
+#![allow(clippy::panic)]
+#![allow(clippy::expect_used)]
+
 //! Produces documentation of all the implemented IronCalc functions
 //! and saves the result to functions.md
 //!

xlsx/src/bin/test.rs

@@ -1,3 +1,6 @@
+#![allow(clippy::unwrap_used)]
+#![allow(clippy::panic)]
+
 //! Tests an Excel xlsx file.
 //! Returns a list of differences in json format.
 //! Saves an IronCalc version

xlsx/src/bin/xlsx_2_icalc.rs

@@ -1,3 +1,6 @@
+#![allow(clippy::unwrap_used)]
+#![allow(clippy::panic)]
+
 //! Tests an Excel xlsx file.
 //! Returns a list of differences in json format.
 //! Saves an IronCalc version