New fixes to match Misra c++ quality rules

[fspindle]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 62.33383% with 255 lines in your changes are missing coverage. Please review.

Project coverage is 45.64%. Comparing base (9e24a98) to head (2770f9d).
Report is 11 commits behind head on master.

Files	Patch %	Lines
modules/core/src/tools/file/vpIoTools.cpp	37.80%	51 Missing ⚠️
modules/core/src/image/vpImageTools.cpp	40.57%	41 Missing ⚠️
...rc/pose-estimation/vpPoseVirtualVisualServoing.cpp	25.00%	36 Missing ⚠️
modules/tracker/blob/src/dots/vpDot.cpp	65.34%	35 Missing ⚠️
modules/vision/src/pose-estimation/vpPoseRGBD.cpp	0.00%	32 Missing ⚠️
modules/core/src/tools/geometry/vpRectOriented.cpp	28.57%	10 Missing ⚠️
modules/imgproc/src/vpImgproc.cpp	47.05%	9 Missing ⚠️
modules/imgproc/src/vpCLAHE.cpp	30.00%	7 Missing ⚠️
modules/core/src/display/vpDisplay_uchar.cpp	0.00%	4 Missing ⚠️
modules/core/src/tools/geometry/vpPolygon.cpp	73.33%	4 Missing ⚠️
... and 13 more

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1378   +/-   ##
=======================================
  Coverage   45.63%   45.64%           
=======================================
  Files        1069     1069           
  Lines      108080   108106   +26     
  Branches    18709    18710    +1     
=======================================
+ Hits        49323    49342   +19     
- Misses      58757    58764    +7     

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