Merge branch 'Molck-SCHWED-3126' into develop

CHANGELOG.txt

modules/conop/doc/aminoacid.rst

modules/conop/pymod/CMakeLists.txt

modules/conop/pymod/wrap_conop.cc

modules/conop/src/CMakeLists.txt

modules/conop/tests/CMakeLists.txt

modules/mol/alg/doc/molalg.rst

modules/mol/alg/doc/molck.rst

modules/mol/alg/pymod/CMakeLists.txt

modules/mol/alg/pymod/export_molck.cc

modules/mol/alg/pymod/export_non_standard.cc

modules/mol/alg/pymod/wrap_mol_alg.cc

modules/mol/alg/src/CMakeLists.txt

modules/mol/alg/src/molck.cc

modules/mol/alg/src/molck.hh

modules/mol/alg/src/nonstandard.cc

modules/mol/alg/src/nonstandard.hh

modules/mol/alg/tests/CMakeLists.txt

modules/mol/alg/tests/test_nonstandard.py

modules/mol/alg/tests/testfiles/cbeta.pdb