mTECS

This is Thomas' total energy control system. Heavily tested in the last days, its now a good time to start ironing out the last kinks and establishing trust logs. Should also be made the default on master.

@thomasgubler @sjwilks @AndreasAntener Please provide additional comments here.  Less branches will mean less confusion in the next weeks testing 8).
Two recommendations here:
1) Publish the whole 2-by-2 covariance matrix for windspeed
- Might as well capture and use all the data that we have. Easier to put it in now.

2) Set to negative number for unknown or not estimated
- While unlikely, zero variance is a possible value for variance calculation. Negative variance is not possible. Let's set a good convention.