Create Scriptcs.Core project
Create Scriptcs.Core.Tests project
Scriptcs.Core should reference the Roslyn Compiler assemblies
ScriptEngine logic should be contained in the Scriptcs.Core project
PackageAssemblyResolverTests should be located in the Scriptcs.Core.Tests project
Merge pull request #41 from JRusbatch/refactor-api

Move script execution logic into a separate project from the console application.