Change some context log message levels.

Reduce some messages from info to debug that should not be displayed
by default to all users of the library.

Signed-off-by: William Brown <[email protected]>

tss-esapi/src/context.rs

@@ -447,19 +447,19 @@ impl Context {
 
 impl Drop for Context {
     fn drop(&mut self) {
-        info!("Closing context.");
+        debug!("Closing context.");
 
         // Flush handles
         for handle in self.handle_manager.handles_to_flush() {
-            info!("Flushing handle {}", ESYS_TR::from(handle));
+            debug!("Flushing handle {}", ESYS_TR::from(handle));
             if let Err(e) = self.flush_context(handle) {
                 error!("Error when dropping the context: {}", e);
             }
         }
 
         // Close handles
         for handle in self.handle_manager.handles_to_close().iter_mut() {
-            info!("Closing handle {}", ESYS_TR::from(*handle));
+            debug!("Closing handle {}", ESYS_TR::from(*handle));
             if let Err(e) = self.tr_close(handle) {
                 error!("Error when dropping context: {}.", e);
             }
@@ -480,6 +480,6 @@ impl Drop for Context {
                     .unwrap(), // should not fail based on how the context is initialised/used
             )
         };
-        info!("Context closed.");
+        debug!("Context closed.");
     }
 }