fix: wrong center after opening another project

Closes #387

See merge request !274

The image center (or principal point) could be set wrongly if the previous project had a significantly lower resolution, disallowing values for cx,cy such as the correct ones for the next project.

-> load video (and therefore imagesize) first

Resolve "Add tab where the logging output is displayed"

See merge request !233

Resolve "Make autosave parameters accessible via GUI"

Closes #336

See merge request !271

Context menu no longer moves the track point

Closes #386

See merge request !273

Stop tracking before reaching the used border

Closes #77

See merge request !269

Catch error in openProject, show message and reload old proj

Closes #369

See merge request !260

New procedure for dealing with invalid pet-file:
- save current state before loading new file
- open new file
- throw exception on erroneous value
- catch exception at top level and restore old state
- show error message

Resolve "Use `USER`-directive in Dockerfile"

Closes #354

See merge request !272

Resolve "Delete dead code in CoordItem"

Closes #380

See merge request !270

- Delete some dead code in CoordItem
- Slightly refactor `paint`-method

Gray out calib (3/N)

See merge request !267

- Introduces `ExtrinsicParameters`-Struct
- Extract `ExtrinsicBox` from `Control`

Unload loaded video when loading pet with empty SRC

Closes #375

See merge request !268

Extract Widgets for "Grey out calibration tab" (2/N)

See merge request !258

- Move slots to FilterBeforeBox when concerning its elemets
- Fix Tab order of new extracted widgets
- Delete dependency to Control by AutoCalib

Resolve "Refactoring of findCodeMarker-method"

Closes #368

See merge request !254

Use repaint-call in updateImage to mitigate flickering

Closes #247

See merge request !265

Fix formatting

See merge request !266

Remove TIME_MEASUREMENT macro

Closes #120

See merge request !264

Check if image is loaded before computing missing frames, else throw exception

Closes #340

See merge request !262

Add test for pet-file

Closes #371

See merge request !259

- Add test which reads a "default"-pet file and writes it out and then compares them
- Detect differences in reading/writing/overall file format
- fix: ColorMarker read in saturation for value

fix: read reprojection error

Closes #364

See merge request !261

- Reads in whole intrinsic calibration at once
 -> reads in reprojection error without setting it to NaN later on

Merge branch '350-codemarker-offset-when-changing-recognition-method-from-multicoler-to-codemarker' into 'master'

fix: Reset CodeMarker offset for visualization

Closes #350

See merge request !263

Allow failure in pre-build check

Closes #370

See merge request !256