Does not work properly with tsconfig.json with extends

[justkey007]

Fixes #230

[douglasgsouza]

@justkey007 This seems to introduce a new issue:
tsc-alias error: compilerOptions.outDir is not set.

with config like:

{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "outDir": "dist",
    "module": "CommonJS"
  }
}

where base tsconfig.json has no outdir defined.

Debug message:

tsc-alias --debug -p tsconfig.backend.json
tsc-alias debug: Loading config file: 'my-project/tsconfig.backend.json'
tsc-alias debug: configDir 'my-project'
tsc-alias debug: loaded config (from file): {
  baseUrl: './src',
  paths: { '@/*': [ '*', [length]: 1 ] },
  fileExtensions: {}
}
tsc-alias error: compilerOptions.outDir is not set

This does not occur in 1.8.13.
Could you check?

[heath-freenome]

@justkey007 More over, if you provide a non-standard filename, with the -p that has the .outDir in it and does NOT extends any other tsconfig.json file, while the base tsconfig.json file does not have it, it also fails. I'm guessing that the code you added loses track of the file provided by -p and starts looking in tsconfig.json instead.

[gustavo-yance-ikon]

Somehow from this version seems all the paths are not being resolved after use tsc-alias. Ideas? Every other file seems to be fine. When I go back to 1.8.13 it works fine.