Merge branch 'develop' into mmcifparser

modules/geom/pymod/export_mat3.cc

modules/geom/pymod/export_mat4.cc

modules/geom/pymod/export_vec2.cc

modules/geom/pymod/export_vec3.cc

modules/geom/pymod/export_vec4.cc

modules/geom/pymod/export_vecmat2_op.cc

modules/geom/pymod/export_vecmat3_op.cc

modules/geom/pymod/export_vecmat4_op.cc

modules/geom/src/composite3.cc

modules/geom/src/composite3_op.cc

modules/geom/src/quat.cc

modules/geom/src/vec3.cc

modules/geom/src/vec3.hh

modules/geom/tests/CMakeLists.txt

modules/geom/tests/test_geom.py

modules/geom/tests/test_repr.py

modules/gfx/pymod/CMakeLists.txt

modules/gfx/pymod/__init__.py

modules/gfx/pymod/export_entity.cc

modules/gfx/pymod/export_exporter.cc