Add vnet-to-vnet-peering example

[MCKLMT]

Contributing a Pull Request

If you haven't already, read the full contribution guide. The guide may have changed since the last time you read it, so please double-check. Once you are done and ready to submit your PR, run through the relevant checklist below.

Contributing to documentation

• The contribution does not exist in any of the docs in either the root of the docs directory or the specs

Contributing an example

• I have checked that there is not an equivalent example already submitted
• I have resolved all warnings and errors shown by the Bicep VS Code extension
• I have checked that all tests are passing by running dotnet test
• I have consistent casing for all of my identifiers and am using camelCasing unless I have a justification to use another casing style

Contributing a feature

• I have opened a new issue for the proposal, or commented on an existing one, and ensured that the bicep maintainers are good with the design of the feature being implemented
• I have included "Fixes #{issue_number}" in the PR description, so GitHub can link to the issue and close it when the PR is merged
• I have appropriate test coverage of my new feature

[codecov-io]

Codecov Report

Merging #1274 (df3d7a7) into main (0a9269d) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1274   +/-   ##
=======================================
  Coverage   94.48%   94.48%           
=======================================
  Files         338      338           
  Lines       16990    16990           
  Branches       14       14           
=======================================
  Hits        16053    16053           
  Misses        937      937           

Flag	Coverage Δ
dotnet	95.02% <ø> (ø)
typescript	27.20% <ø> (ø)

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