include required mark for parameters that doesn't have a default value

[polatengin]

Fixes #12039

Adding (Required) text to the parameter title when the parameter doesn't have a default value;

Screenshot of a .bicepparam file with a (Required) parameter shown;

Screenshot of a .bicepparam file with a not (Required) parameter shown;

Just like submodule parameters in .bicep files has (Required) text if they don't have a default value;

Screenshot of a sample .bicep file;

Microsoft Reviewers: Open in CodeFlow

[github-actions]

Test this change out locally with the following install scripts (Action run 7212755481)

VSCode

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-vsix.sh) --run-id 7212755481

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-vsix.ps1) } -RunId 7212755481"

Azure CLI

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-cli.sh) --run-id 7212755481

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-cli.ps1) } -RunId 7212755481"

[github-actions]

Test Results

       66 files   -        33         66 suites   - 33   1h 22m 54s ⏱️ - 1h 41m 49s
10 426 tests  -        15  10 425 ✔️  -        15  1 💤 ±0  0 ❌ ±0 
25 347 runs   - 12 672  25 345 ✔️  - 12 671  2 💤  - 1  0 ❌ ±0 

Results for commit 3877f4b. ± Comparison against base commit 460934a.