Add optional non-adjusting temperatures activated by removing comment…

[jimprince]

I thought it was a useful feature as the first thing I did was walk around with the camera and look at stuff. It made it a bit easier to get a feel for the absolute temperature of the objects around me (walking through my house during winter) as opposed to just relative temperature between them. I've never submitted a PR before so if is customary to include more or you need anything else, just let me know.

[nseidle]

Thanks for the PR! Looks pretty good but the only change I see in this pr is the addition of a few comments:

Is that your intent?

[jimprince]

Hey! Thanks for getting back to me. Yeah, just by uncommenting those two lines you get a static temperature range on the output image instead of a dynamically adjusting temperature range (where the colors change based on the min and max temperature in the frame).

I'll try and take a couple pictures with it both enabled and disabled so you can see what the difference looks like and if you want to include it. It may take me a couple days as I put my sensor away as I'm moving at the moment. Will post back soon.

Cheers!

[nseidle]

Got it. Thanks for the explanation. Images would be helpful for me.