Filter attribute combo box by primitive / type

[lbinria]

It would be very useful to be able (by C++ / LUA code) to display a filtered version of attributes combo box. For example, if we want to display a combo box that only contains all vertices attributes, or eventually all vertices.bool attributes.

Below, lock attribute expect to be a vertices.bool attribute, but combo box contains all attribute types:

[BrunoLevy]

Just pushed a new version. See lib/programming_examples/Lua/custom_commands for an example.

[lbinria]

:+1: , good for me ! But it seems that you change the attribute names format. For example vertices.bool become vertices.OGF::Numeric::uint8.