MunsMan

automatic lookup for workspace folder

12

Fixes #29 by checking if the current working directory contains a `.devcontainer` folder. I added this check after seeing #332 It looks like that the following two [`if`-statements](https://github.com/MunsMan/devcontainercli/blob/5c7077c67832614f0ec56bd5f3d76543e52c44f1/src/spec-node/devContainersSpecCLI.ts#L139-L144) are obsolete....