load tsconfig compiler-options, support extends
field
# using npm
npm install --save tsconfig-extends
# using yarn
yarn add tsconfig-extends
import * as tsconfig from 'tsconfig-extends';
const compiler_options = tsconfig.load_file_sync('path/to/tsconfig.json');
load_file_sync(filename: string, cwd?: string): CompilerOptions
load_config_sync(tsconfig: TSConfig, cwd?: string): CompilerOptions