ENH: Document that conversion applications in otb don't support complex pixel types as output

Summary

For now complex pixel types are not supported by Convert and DynamicConvert applications (see switch/case in the generic DoExecute method). This commit just document this limitation.

Note that the ExtractROI application can be used to convert image from/to complex image.

Rationale

Explain to user that comlpex pixel types are not supported yet by these applications even if complex pixel types can be selected for the output image.

Implementation Details

Applications

Convert and DynamicConvert has been changed. Convert is somehow deprecated and could be remove in a future version but I'm not sure that it is clear for user that they should use DynamicConvert now.

Additional notes

Copyright

The copyright owner is CNES and has signed the ORFEO ToolBox Contributor License Agreement.

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***Check before merging:*** - All discussions are resolved - At least 2 👍 votes from core developers, no 👎 vote. - The feature branch is (reasonably) up-to-date with the base branch - Dashboard is green - Copyright owner has signed the ORFEO ToolBox Contributor License Agreement

changed the description

added patch label

added 13 commits

• 06116617...3bceaa54 - 12 commits from branch develop
• 5a1ae85a - Merge branch 'develop' into convert_apps_limitations

Compare with previous version

mentioned in commit 258d3f59

merged