Device model

[willrogers]

Put the device model and the computational model on a similar basis from an object-orientated point of view.

[coveralls]

Coverage increased (+1.07%) to 93.963% when pulling 83df8ef on device-model into bbe5333 on master.

[coveralls]

Coverage increased (+1.9%) to 94.751% when pulling 43c5a6a on device-model into bbe5333 on master.

[coveralls]

Coverage increased (+1.2%) to 94.057% when pulling d702b7d on device-model into bbe5333 on master.

[coveralls]

Coverage increased (+1.2%) to 94.132% when pulling 21dcc2d on device-model into bbe5333 on master.

[coveralls]

Coverage increased (+1.2%) to 94.072% when pulling 21dcc2d on device-model into bbe5333 on master.

[coveralls]

Coverage increased (+1.2%) to 94.072% when pulling f70a071 on device-model into bbe5333 on master.

[coveralls]

Coverage increased (+1.2%) to 94.072% when pulling f70a071 on device-model into bbe5333 on master.

[coveralls]

Coverage increased (+1.2%) to 94.072% when pulling f70a071 on device-model into bbe5333 on master.