[Add] Neo Build Project Files

[cschuchardt88]

Description

Initialize Neo.Build.Core and Neo.Build.Core.Tests Projects. So, we can get started with building.

Just making it easier for PR review.

Blocks

• [Add] Neo Build Error Definition #3728

Change Log

• Added ./src/Shared/Neo.Build.Core/Neo.Build.Core.csproj file.
• Added ./src/Shared/Directory.Build.props file.
• Added ./tests/Neo.Build.Core.Tests/Neo.Build.Core.Tests.csproj file
• Added solution directory shared
• Added project Neo.Build.Core.Tests to solution directory ./shared/tests/.
• Added project Neo.Build.Core to solution directory ./shared/.

Type of change

• Optimization (the change is only an optimization)
• Style (the change is only a code style for better maintenance or standard purpose)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• N/a

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[shargon]

This is relative to Shared folder or where?

[cschuchardt88]

Shared is where this file is placed with in src directory.