Allow installing modules that require accepting a license

### Problem
Some modules on the PS Gallery (for example, MSAL.PS) require the user to accept a license, either by confirming accepting the license interactively, or by providing the `-AcceptLicense` switch when invoking `Install-Module`. It is currently impossible to use these modules in PowerShell Functions by just mentioning them in `requirements.psd1`. The workaround is to include these modules into the app or deploy them to the file system manually, but in this case they will not be considered a managed dependency, so they will not be auto-upgraded etc.

### Proposal
- When automatically installing/upgrading the modules mentioned in `requirements.psd1`, accept the license automatically.
- Make it clear for the users that including a module into `requirements.psd1` and deploying/starting the app implies accepting the module license.