Exclude files by pattern

Hi,

coming from an angular project where normal files and test (spec) files are located next to each other it seems impossible to only check the *.ts files and skip the *.spec.ts files. Or did i mess up the configuration.

```json
"plugins": [
{
"name": "typescript-strict-plugin",
"paths": [
"./src/app/folder1",
"./src/app/folder2"
],
"exclude": [
// doesn't work
"./src/app/folder1/**/*.spec.ts"
// doesn't work
"**/*.spec.ts"
// even specifying the files directly seems to have no effect
"./src/app/folder1/subfolder/some-test.spec.ts"
]
}
]
```

Is ist simply not possible right now?

Thx for your help!