ENH: move implementation of non virtual methods to a source file to add them in the shared library in MetadataStorageInterface and MetadataSupplierInterface

BUG: remove cast to char* const& as it does not compile on windows, the lexical cast to char* is notneeded anyway

ReadXMLToList from GDAL is not part of the public API. It can be used
when compiling libgdal without --with-hide-internal-symbols
switch. But libgdal from Debian and Ubuntu packages doesn't contains
the symbols. The adopted solution is to implement a ReadXMLToList
function for the OTB.

Fix spatial reference equality tests

Closes #2051 and #2055

See merge request orfeotoolbox/otb!720

Fix Centos CI build

See merge request orfeotoolbox/otb!719

ENH: override SetNumberOfComponentsPerPixel to implement a default behavior for band specific metadata copy

BUG: Use the same mapping strategy when comparing spatial reference from a Datasource and a wkt string

BUG: use the PCA transformation matrix instead of the ICA transformation matrix to determine the output size

BUG: #2046 Add an epsilon margin to compute the m_ReachableOutputRegion

Closes #2046

See merge request orfeotoolbox/otb!714

Error in the documenation of the QGIS plugin

See merge request orfeotoolbox/otb!716

Update GDAL version in superbuild (3.1.0)

Closes #2052

See merge request orfeotoolbox/otb!715

REFAC: move image list objects to a new module, because they now depend on OTBMetadata, which depends on OTBObjectList

REFAC: update multi-baseline for large input tests (same projection, but different wkt strings) and removed out-of-date baselines