Cal checkerboard object coords update (#181)

* WIP monkeying around with adding new targets.

* Added testcase to replicate large extrinsics result from calibration.

* Tweaked calibration pipline to return image with chessboard corner detection overlaid.

* Removed "bad" images from the cal, but that didn't seem to help...

* Added test logic to output the undistorted Mat for evaluating the quality of the calibration.

* Tweaked generation of chessboard points to be in a square pattern, not parallelogram.

* Spotless and removed bespoke test target in prep for PR.

* Revised to a double-for loop for less complex-looking logic

* #thanks spotless

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* Boop

* Reverting my changes in Calibrate3dPipeline.java to make this merge better with other PR's

* Derp changed the wrong one

photon-client/src/views/PipelineViews/PnPTab.vue

@@ -60,7 +60,7 @@
         },
         data() {
             return {
-                targetList: ['2020 High Goal Outer', '2020 High Goal Inner', '2019 Dual Target', 'Power Cell (7in)'],
+                targetList: ['2020 High Goal Outer', '2020 High Goal Inner', '2019 Dual Target', 'Power Cell (7in)', '2016 High Goal'], //Keep in sync with TargetModel.java 
                 snackbar: {
                     color: "Success",
                     text: ""