Nim: Set environment for running project

Avoids command line warning
"QtcProcess::start: Empty environment set when running".

Change-Id: I230a33762dd20134c9d439624ca360acf2cbf956
Reviewed-by: Filippo Cucchetto <filippocucchetto@gmail.com>
Reviewed-by: hjk <hjk@qt.io>

src/plugins/nim/project/nimrunconfiguration.cpp

@@ -80,6 +80,7 @@ Runnable NimRunConfiguration::runnable() const
     result.executable = m_executable;
     result.commandLineArguments = m_argumentAspect->arguments();
     result.workingDirectory = m_workingDirectoryAspect->workingDirectory().toString();
+    result.environment = m_localEnvironmentAspect->environment();
     return result;
 }