How can I let any app think that my iPad1 has a camera, gyroscope, iOS 6 or whatever.

[Cromwell]

I do not want to discuss wether it is usefull or not to install apps designed for iPad2 and newer on an iPad 1.

I just want to know how to let any app think, that you fulfill its requirements without changing anything inside the app itself.
This should include camera, iOS Version or whatever restrictions are imposed to prevent you from downloading apps from the AppStore.

Background: There are apps which can be run on iPad1 and 5.1.1. but are not tested with it because the Devs do not have the time or are not willing to support older iOS versions or whatever.....

Again, I know what I am doing and will not complain to any Dev or anyone else when an app does not work or run sluggish on my iPad 1

I searched google but didn't find the right information. I found firmware changer, but it is discontinued and pulled from cydia. Any help would be appreciated

THX!