Define an acceptance policy for recognition

[M-Davies]

To save time and processing power, we could define a policy to accept high confidence faces or gestures from the camera instead of setting a static 90% confidence or more policy (what we have now). Idea:

• Face recog of 90% or above = Access Granted
• Face recog of 70-90% and gesture combination was correctly entered = Access Granted
• Face recog of less than 70% leading to a average gesture recog of 90% or above OR higher than 70% but wrong gesture combination was given = Access Denied
• Either face or gesture is less than 70% or non-existent = Access Denied

NOTE: The strikethroughs are due to me reevaluating what will actually be needed in light of the web frontend and feasibility of an "average" gesture combination given

[M-Davies]

I am going to move this out of the milestones as it is going to be implemented on the website end rather than the python end