Rebase CLI tab on latest CF

Integrates Save to File and Clear Output buttons, plus some minor
iNav compatibility patches

js/helpers.js

@@ -12,4 +12,37 @@ function constrain(input, min, max) {
     }
 
     return input;
+}
+
+function zeroPad(value, width) {
+    value = "" + value;
+
+    while (value.length < width) {
+        value = "0" + value;
+    }
+
+    return value;
+}
+
+function generateFilename(prefix, suffix) {
+    var date = new Date();
+    var filename = prefix;
+
+    if (CONFIG) {
+        if (CONFIG.flightControllerIdentifier) {
+            filename = CONFIG.flightControllerIdentifier + '_' + filename;
+        }
+        if (CONFIG.name && CONFIG.name.trim() !== '') {
+            filename = filename + '_' + CONFIG.name.trim().replace(' ', '_');
+        }
+    }
+
+    filename = filename + '_' + date.getFullYear()
+        + zeroPad(date.getMonth() + 1, 2)
+        + zeroPad(date.getDate(), 2)
+        + '_' + zeroPad(date.getHours(), 2)
+        + zeroPad(date.getMinutes(), 2)
+        + zeroPad(date.getSeconds(), 2);
+
+    return filename + '.' + suffix;
 }