feat: create a Rust check for PII responses sample plugin

[pweiber]

Rust version for the check pii c++ version in #136

The tests used are from #136

Consider merging it before this one

Includes:

• Mask for CC numbers in 16-digit hyphenated format.
• Mask for a 10 digit numeric code (In addition to the already CC check)

[snippet-bot]

Here is the summary of changes.

You are about to add 1 region tag.

• plugins/samples/check_pii/plugin.rs:15, tag serviceextensions_plugin_check_pii

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