Update Microsoft.OAuth.KnownApplications.csv

[melatonein5]

Added Gmail as known application

Required items, please complete

Change(s):

• Updated known applications list to include Gmail

Reason for Change(s):

• Gmail is a common application used in enterprise, therefore should be added to a list of known applications.

Version Updated:

• N/A - this is a static CSV with no versioning

Testing Completed:

• N/A, this is a static CSV which cannot be tested

Checked that the validations are passing and have addressed any issues that are present:

• N/A, I have confirmed the application ID of Gmail, but this change is to just add a new line to a CSV