Implement RFC0005: Compile applications for remote debugging

[thitch97]

Context

RFC 0005 outlines a plan for enabling Remote Debug support in the Paketo Buildpack for .NET Core. The implementation requires that .NET Core applications are compiled in a way that ensures debug support.

Required Changes

The dotnet-publish buildpack currently runs the following command in its build process:

dotnet publish \
  --configuration Release \
  --runtime ubuntu.18.04-x64 \
  --self-contained false \
  --output <output-path>

When the BP_DEBUG_ENABLED environment variable is set to true, the buildpack will set the --configuration flag to Debug to ensure debug support is built into the compiled application.

Criteria for Acceptance

When the BP_DEBUG_ENABLED environment variable is set to true:

• I should see in the build output that dotnet publish is run with --configuration Debug and NOT --configuration Release.