Create GlideDateTime_DaysUntilFutureDate (#164)

* Create GlideDateTime_DaysUntilFutureDate

This syntax macro provides a reusable snippet for calculating the number of days between the current date and a specified future date. It initializes the current date, sets a future date, calculates the difference in milliseconds, converts the difference to days, and logs the result. This can be useful for deadline tracking, event planning, and other time-based calculations.

* Rename GlideDateTime_DaysUntilFutureDate to GlideDateTime/DaysUntilFutureDate

* Rename DaysUntilFutureDate to DaysUntilFutureDate.js

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Co-authored-by: Laszlo <47461634+Lacah@users.noreply.github.com>

Author: MYaswanth28

GlideDateTime/DaysUntilFutureDate.js

@@ -0,0 +1,14 @@
+// Initialize the current date and time
+var currentDate = new GlideDateTime();
+
+// Set the future date (e.g., '2023-12-31 00:00:00')
+var futureDate = new GlideDateTime('2023-12-31 00:00:00');
+
+// Calculate the difference in milliseconds
+var diff = GlideDateTime.subtract(futureDate, currentDate);
+
+// Convert the difference to days
+var daysUntil = Math.floor(diff.getNumericValue() / (1000 * 60 * 60 * 24));
+
+// Log the result
+gs.info('Days until future date: ' + daysUntil);