Improvement: Deduplicate seed logic between build scripts

[hydraInsurgent]

TL;DR

The sample database seed logic (temp .NET project pattern) is duplicated in two scripts.

Current State

Both Build-Distributable.ps1 and Create-SampleDb.ps1 contain nearly identical seed code.

Desired State

Build-Distributable.ps1 should call Create-SampleDb.ps1 instead of inlining the same logic.