Bulgaria: merge Groups

[tmtmtmtm]

There are multiple Parliamentary Groups in Bulgaria that should either be merged, or properly differentiated:

• "order,_lawfulness_justice",Q1048010
• "order,_lawfulness,_justice",Q1048010
• parliamentary_union_of_democrats_for_strong_bulgaria,Q127205
• democrats_for_strong_bulgaria,Q127205
• movement_for_rights_and_freedoms,Q164242
• the_movement_for_rights_and_freedoms,Q164242
• parliamentary_union_of_the_united_democratic_forces,Q841253
• the_union_of_the_democratic_forces,Q841253
• simeon_the_second_national_movement,Q928435
• nmss_stability_and_prosperity,Q928435
• coalition_for_bulgaria,Q971439
• parliamentary_group_bsp_left_bulgaria,Q971439