Remove more c_str with SetFileName string overload

See merge request orfeotoolbox/otb!189

Resolve "Module which generates QGIS descriptor is called Qgis while the source directory is QGIS (upper case)"

Closes #1685

See merge request orfeotoolbox/otb!196

Resolve "Monteverdi build error (superbuild)"

Closes #1661

See merge request orfeotoolbox/otb!195

BUG: Be compliant with new cmake policy CMP0072 with cmake > 3.11

See merge request orfeotoolbox/otb!155

CMake 3.11 and above prefer to choose GLVND libraries, OTB check of OpenGL libraries should check this library. This bug can appear also with previous cmake version if the OpenGL_GL_Preferences is changed.

Resolve "QLayout: Attempting to add QLayout "" to otb::Wrapper::QtWidgetParameterGroup "", which already has a layout"

Closes #1645

See merge request orfeotoolbox/otb!187

Revert "Merge branch 'new_contributors' into 'develop'"

See merge request orfeotoolbox/otb!192

WRG: fix unused parameter warning

See merge request orfeotoolbox/otb!190

This reverts merge request !185

Adopt SemVer for 7.0.0 and migrate release template to a gitlab issue template

See merge request orfeotoolbox/otb!174

Fix compilation GDALImageIO

See merge request orfeotoolbox/otb!188

Here's what I did:

    find Modules/ Examples/ -type f -print0 | xargs -0 sed -i -E "s/SetFileName\((.*)\.c_str\(\)/SetFileName\(\1/"

DOC: update list of contributors

See merge request orfeotoolbox/otb!185

PKG: install openCV libraries to lib

See merge request orfeotoolbox/otb!186