There have been violent protests by independence supporters in the French overseas territory of New Caledonia. The separatists are angry about a planned constitutional amendment by the government in Paris, which would give thousands of French voters in the French island province in the South Pacific the right to vote and therefore more political influence. There have been demonstrations and clashes with security forces, particularly in the suburbs of the capital Nouméa, the public broadcaster 1ère Nouvelle-Calédonie reported on Tuesday. Several shops and cars have gone up in flames since Monda…