feat: support yml, yaml and json tslint configuration files (#3305)

Author: AnWeber

packages/@vue/cli-plugin-typescript/lib/tslint.js

@@ -80,7 +80,9 @@ module.exports = function lint (args = {}, api, silent) {
     patchProgram(this.program)
   }
 
-  const tslintConfigPath = api.resolve('tslint.json')
+  const tslintConfigPath = tslint.Configuration.CONFIG_FILENAMES
+    .map(filename => api.resolve(filename))
+    .find(file => fs.existsSync(file))
 
   const config = tslint.Configuration.findConfiguration(tslintConfigPath).results
   // create a patched config that disables the blank lines rule,
@@ -113,7 +115,7 @@ module.exports = function lint (args = {}, api, silent) {
   // respect linterOptions.exclude from tslint.json
   if (config.linterOptions && config.linterOptions.exclude) {
     // use the raw tslint.json data because config contains absolute paths
-    const rawTslintConfig = JSON.parse(fs.readFileSync(tslintConfigPath, 'utf-8'))
+    const rawTslintConfig = tslint.Configuration.readConfigurationFile(tslintConfigPath)
     const excludedGlobs = rawTslintConfig.linterOptions.exclude
     excludedGlobs.forEach((g) => files.push('!' + g))
   }