By Emma-Victoria Farr LONDON (Reuters) – Goldman Sachs has acquired Netherlands-based asset manager NN Investment Partners for 1.7 billion euros ($1.9 billion) to expand its asset management footprint in Europe and increase its sustainable investment capabilities. NN Investment Partners, formerly part of NN Group, will be integrated into Goldman Sachs Asset Management (GSAM). The acquisition of the firm, which has more than 900 employees, brings Goldman’s assets under supervision to approximately 2.8 trillion dollars. Buying NN Investment Partners, based in The Hague, is part of Goldman Sachs’…