#262 plcs-rdl-en.owl Remove capital S in description.(L)

[Peter Svanberg]

Concerns:
Scheme_entry_relationship_identification_code
Scheme_identification_code
Scheme_relationship_identification_code
Scheme_version_identification_code
Scheme_version_relationship_identification_code
Sequence_of_state_definition_identification_code
Sequence_of_state_identification_code
Sequencing_relationship_identification_code
Start_task_identification_code
State_cause_effect_definition_identification_code
State_cause_effect_identification_code
State_complement_definition_identification_code