chip-tool now builds the core as a static library (chip-tool-utils)

[mleisner]

Added set of pure virtual methods PKI-related to Commands class
Added example implementation of Matter’s example PKI
Added DAC to GenerateNOCChain method call
Added GenerateNOCSR method to OperationalCredentialsDelegate class so every PKI-vendor can override the nonce generation to follow a custom set of rules. Random example added.

Problem

What is being fixed? Examples:

• Fix crash on startup
• Fixes Fix unexpected firmware selection by flashing scripts project-chip/connectedhomeip#12345 Frobnozzle is leaky (exactly like that, so GitHub will auto-close the issue).

Change overview

What's in this PR

Testing

How was this tested? (at least one bullet point required)

• If unit tests were added, how do they cover this issue?
• If unit tests existed, how were they fixed/modified to prevent this in future?
• If new unit tests are not added, why not?
• If integration tests were added, how do they verify this change?
• If new integration tests are not added, why not?
• If manually tested, what platforms controller and device platforms were manually tested, and how?
• If no testing is required, why not?