message: add ninja mc to findBestGenerator
diff: @@ -785,7 +785,7 @@ export abstract class CMakeDriver implements vscode.Disposable {
  for (const gen of preferredGenerators) {
  const gen_name = gen.name;
  const generator_present = await (async (): Promise<boolean> => {
  - if (gen_name === 'Ninja') {
  + if (gen_name === 'Ninja' || gen_name === 'Ninja Multi-Config') {
  return await this.testHaveCommand('ninja') || this.testHaveCommand('ninja-build');
  }
  if (gen_name === 'MinGW Makefiles') {
  