SQL Cop Demo Updates

Added a drop/recreate to the demo script for changing the proc.
SQL Cop Demo

Added single test execution to the end
Demo Split

Separated out demos for Isolate Procedure and Meta Data. Demos updated
with checks and more comments for flow.
Exceptions Demo

Split to separate file. Added additional proc to show poor refactoring
failing the test.
Build tests automatically

Demo of script to build code to build tests