Flag to generate minified JSON instead, for build-params

**Is your feature request related to a problem? Please describe.**
When converting .bicepparams files into JSON parameter files, the resulting JSON file can become quite large. This happens if there is a lot of nesting or simply a lot of parameters, in the original bicepparam file.

**Describe the solution you'd like**
For the command `bicep build-params .\.bicepparam`, add a flag to minify the resulting JSON.
Right now it outputs the JSON fully formated and indented. For automated processes (e.g. further manipulating in PowerShell), it would make sense to get it minified. E.g. `bicep build-params -minify .\.bicepparam`

Start with the `bicep build-params .bicepparam` command and compare its current formatted JSON output with the requested `-minify` form. Done means the command accepts the flag and produces minified JSON while retaining the existing formatted output when the flag is absent.

Written by the indexing model from the issue text.