DOC: add blockquote in description rst warning and fix some

Documentation/Cookbook/Scripts/otbGenerateWrappersRstDoc.py

Documentation/Cookbook/Scripts/otb_warnings.py

...Classification/app/otbClassificationMapRegularization.cxx

Modules/Applications/AppImageUtils/app/otbColorMapping.cxx

Modules/Applications/AppImageUtils/app/otbDynamicConvert.cxx

Modules/Applications/AppMathParser/app/otbBandMath.cxx

Modules/Applications/AppMathParserX/app/otbBandMathX.cxx

Modules/Applications/AppSARUtils/app/otbDespeckle.cxx

Modules/Applications/AppStereo/app/otbBlockMatching.cxx

...lications/AppStereo/app/otbDisparityMapToElevationMap.cxx

Modules/Applications/AppStereo/app/otbStereoFramework.cxx

...ons/AppStereo/app/otbStereoRectificationGridGenerator.cxx

...cations/AppVectorDataTranslation/app/otbRasterization.cxx