Improve module restore messages

1) spelling
```
10:10:51 AM: Restore (force) skipped. No modules references in input file.
```
EXPECTED:
```
10:10:51 AM: Restore (force) skipped. No modules referenced in input file.
or
10:10:51 AM: Restore (force) skipped. No module references in input file.
```

2) We should output a message when we start to restore modules. The activity normally takes at least a few seconds, and can be much longer. Right now there's nothing output until the end of the process, making the user (e.g. me) wonder whether anything is even happening.

Suggest:
```
10:17:40 AM: Restoring modules in input file /path/to/file.bicep'... <<<< add this
10:17:47 AM: Restore (force) summary:
* br:mcr.microsoft.com/bicep/storage/storage-account:0.0.1: Succeeded
* br:mcr.microsoft.com/bicep/storage/storage-account:1.0.0: Failed
```

The issue does not name files or tests. Start by locating the module restore command's existing skipped and summary message formatting, then trace where restore begins; done means correcting the grammar and emitting a start message with the input file before the existing restore summary.

Written by the indexing model from the issue text.