New features

• Add AddCallCredentials overload that takes CallCredentials (#1723)
• Validate AddCallCredentials are used by client (#1756)

Fixes

• Ensuring required services are registered when using the server reflection (#1732)
• Re-enable trim analysis and fix warnings (#1744)
• Catch any potential error from deadline callback (#1737)
• Make getting lazy properties on ServiceConfig threadsafe (#1752)