BUG #14336. Fix building on Examples.

Examples were not being build with BUILD_EXAMPLES was ON. Fixed that.

Change-Id: Id982866a5fce5402f9eeaca207b2008b8e3f119e
Merge topic '14336_fix_examples' into next

069a212 BUG #14336. Fix building on Examples.
BUG #14437: Fix delete of help proxies

The previous version was iterating over the number of proxies and
deleting a help proxy at each iteration.  I suspect this caused the
index <-> proxy reference to update making the iteration over number
of indicies invalid.

Instead create a list all the proxies to delete first and then delete
them without referencing proxies by index.

Change-Id: Ic2fee72a41e19308f80cfa82427ada55ff3331c3
Merge topic '14337_delete_pipeline_error' into next

be986ef BUG #14437: Fix delete of help proxies
Renamed some paraview classes to vtk in the docs, as appropriate.

Change-Id: I04bf566b7965035baca22e25388c1eb7fe026541
Merge topic 'pvweb-virtualgl-doc' into next

a0190cb Renamed some paraview classes to vtk in the docs, as appropriate.
append rather than replace with cmake properties

When configuring TestSystemCaps changed set_source_files_properties
to set_property because we need to append rather than replace
previous values. This change lets both MPI and Python report run.

Change-Id: I178523a08780253c63b2e751189d6053a04cd839
Merge topic 'sqplugin-topo-mapper-gui' into next

5a58366 append rather than replace with cmake properties