Ability to use tsconfig and src folder in different location

[dkulchenko]

[Info  - 11:10:22] vscode-tslint: 'Path must be a string. Received undefined' while validating: /Users/daniilk/code/front/src/components/ForgotPassword.vue stacktrace: TypeError: Path must be a string. Received undefined
    at assertPath (path.js:7:11)
    at Object.dirname (path.js:1324:5)
    at getParsedTsConfig (/Users/daniilk/.vscode/extensions/prograhammer.tslint-vue-1.4.2/server/server.js:544:127)
    at createProgram (/Users/daniilk/.vscode/extensions/prograhammer.tslint-vue-1.4.2/server/server.js:458:20)
    at /Users/daniilk/.vscode/extensions/prograhammer.tslint-vue-1.4.2/server/server.js:420:31
    at Generator.next (<anonymous>)
    at fulfilled (/Users/daniilk/.vscode/extensions/prograhammer.tslint-vue-1.4.2/server/server.js:7:58)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:109:7)

There is a tsconfig.json file in the project (<workspace root>/code/front <- in here). vue files in question are at <workspace root>/code/front/src/components/*.vue.