Added Brazilian Portuguese translation (#2834)

Added the Brazilian Portuguese translation to all mods in the Minetest Game.

mods/creative/locale/creative.pt_BR.tr

@@ -0,0 +1,10 @@
+# textdomain: creative
+Allow player to use creative inventory=Permitir o jogador usar o inventário criativo
+Search=Pesquisar
+Reset=Redefinir
+Previous page=Página anterior
+Next page=Próxima página
+All=Todos
+Nodes=Blocos
+Tools=Ferramentas
+Items=Itens