DEM handler based on GDAL

Closes #1762

See merge request orfeotoolbox/otb!729

Fix output image from orthorectification having no projection

See merge request orfeotoolbox/otb!752

Fix spelling errors

See merge request orfeotoolbox/otb!754

 * regulary  -> regularly
 * precense  -> presence
 * speficier -> specifier

STYLE: disable noisy std output message

See merge request !751

Add static link to the 7.2 CookBook

See merge request orfeotoolbox/otb!748

Metadata refactoring

See merge request !707

Update MuParser in Superbuild

Closes #2083 and #2071

See merge request !731

Resolve "Develop package names"

Closes #2076

See merge request !740

Correct menu instructions to open application-browser in Monteverdi

See merge request !735

Freetype and libPNG detection in QT5

See merge request !730

Revert "BUG: force usage of the ld gold linker for linux QT5 build in the Superbuild (link errors with ld bfd)"

This reverts commit 9df40e7f.

Resolve "Develop package names" 2

Closes #2076

See merge request !737

This reverts commit 1870787d.

Merge branch '2070-unitialized-values-and-itk-setters-in-otb-imagetogenericrsoutputparameters' into 'develop'

Unitialized values (and ITK setters) in `otb::ImageToGenericRSOutputParameters

Closes #2070

See merge request !733

This reverts commit b3c3a183.

The figures were not referenced correctly. We activate
the numfig parameter so that figures can be references to
by their number. We also add captions to the figures.

Update PSC informations

See merge request !738